Facebook CEO Mark Zuckerberg spent over four hours answering questions from Congress on issues regarding privacy, hate speech and the company’s role in elections. Here are some key moments from Tuesday’s hearing.

Bristol police are investigating a report that a man grabbed a 16-year-old girl while she was walking down the street Tuesday evening.

Police said the teen was walking in the area of Sycamore and Emmett streets sometime between 5:45 and 6 p.m. when a man in his 20s grabbed her by the arm. The teen broke free and ran away.

The man is described as having a thin build. He was wearing a white tank top and dark jeans. The suspect fled in a silver older model four-door Honda sedan.

Anyone with information should contact the Bristol Police Department at 860-584-3011.

Facebook CEO Mark Zuckerberg said the company was working with special counsel Robert Mueller's investigation into Russian interference  during his testimony before the U.S. Senate on Tuesday.

At first, Zuckerberg said the company had received subpoenas from Mueller's office but then clarified that he actually was not aware of a subpoena.

"I believe that there may be, but I know we're working with them," he said in response to questions from Democratic Sen. Patrick Leahy of Vermont.

Facebook staffers have been interviewed by Mueller's team though Zuckerberg said that he had not. He told the senators that he needed to be careful with his answers because the work with the special counsel was confidential.

The Facebook founder is appearing before a joint session of the Senate Judiciary and Commerce committees, which will continue Wednesday. The senators asked him about the scandal surrounding the firm Cambridge Analytica, which obtained the data of 87 million users and tried to influence U.S. elections, and about Russia-linked accounts that spread false information, harmful in particular to former Secretary of State Hillary Clinton in the 2016 presidential election.

Here are some of the other top moments from the hearing.

A FORMAL LOOK
A "first" became apparent even before the questioning got underway. The 33-year-old CEO, who created Facebook while still a student at Harvard University, appeared before the senators in a suit and tie rather than his customary attire, a t-shirt and jeans.

FACEBOOK'S BUSINESS MODEL
Testimony focused on Facebook's business model, its use of personnel data to target advertising and the possibility that it could charge users in lieu of advertising. Republican Sen. Orrin Hatch of Utah recalled Zuckerberg's first visit to Capitol Hill in 2010 when he told legislators that Facebook would always be free. Would it remain free, he asked.

Zuckerberg, who had been mostly grim faced during the hearing, said that a version would, to which Hatch responded, how could he run a business without charging for it?

"Senator, we run ads," Zuckerberg said.

And he smiled.

FACEBOOK'S ENORMOUS REACH
Sen. Lindsey Graham, Republican of South Carolina, tried to compare Facebook with the automobile industry, where buyers could purchase one car instead of another. Who was Facebook's competitor? If he was upset with Facebook, what was the equivalent product?

Zuckerberg answered with categories of competitors depending on different Facebook services. The average American uses eight different apps, he said.

Didn't he think he had a monopoly in Facebook, Graham asked.

"It certainly doesn't feel like that to me," Zuckerberg said.

YOUR RIGHT TO PRIVACY
The hearing is focused on breaches of privacy and to drive home his point, Democratic Sen. Richard Durbin of Illinois asked Zuckerberg whether he would be comfortable sharing the name of the hotel he stayed at last night.

"No," he answered, and smiled.

What about the names of anyone he had messaged in the past week.

"I would probably not choose to do that publicly here," Zuckerberg said.

Durbin responded: "I think that maybe is what this is all about. Your right to privacy. The limits of your right to privacy and how much you give away in modern America in the name of quote, 'Connecting people around the world.'"

A LEFT-LEANING FACEBOOK?
Texas Republican Sen. Ted Cruz took a different approach from many of his colleagues when he pressed Zuckerberg about whether conservative and liberal groups were treated the same way on Facebook.

Hadn't Facebook blocked pages involving Catholics and supporters of President Donald Trump? Had any pages related to Planned Parenthood been treated that way?

Zuckerberg insisted that he was committed to making sure that Facebook was a platform for all ideas, particularly because it was based in left-leaning Silicon Valley.

Asked at the end of the testy exchange whether he would like a rest, Zuckerberg laughed and said, "That was pretty good."

The hearing took a break anyway.

Questions regarding the safety of drinking water remain more than 24 hours after a tanker overturned on an Interstate 91 southbound exit ramp in Enfield and caused 2,600 gallons of gasoline to spill.

At least three homes on Kalish Avenue, located directly behind the crash site, remain unable to use their water, according to North Thompsonville Fire District Chief Earl Provencher. They and others in the neighborhood rely on private wells to pump water, and using those wells could cause potentially contaminated groundwater to seep towards the homes and expand the overall area of contamination, according to Jeff Chandler, a supervisor with the Department of Energy and Environmental Protection (DEEP) Emergency Response Unit.

Though Connecticut Water confirmed to NBC Connecticut that the gasoline spill has not affected Enfield’s public water, DEEP is working with the Department of Public Health (DPH) and the North Central District Health Department to locate private wells which could be affected. Crews installed new wells between nearby private wells and the crash site which are equipped with devices to monitor for potentially contaminated groundwater.

Chandler said groundwater generally travels at a relatively slow pace of “feet per day,” but he said the soil consistency at the scene of the accident is sandy and porous, which could allow contaminated groundwater to move more freely.

Exit 49 on I-91 southbound remained closed as crews excavated truckloads of contaminated soil from the crash site. Chandler said the soil is delivered to a local facility where it is incinerated. The process is meant to burn off remaining hydrocarbons and allow for the soil to be re-used elsewhere.

Crews will need to backfill wherever soil has been excavated once that process is complete, and the CT DOT will have to inspect their work before the road can be reopened.

Since 2003, there have been 57 crashes between the exit 49 ramps and where they intersect with Route 5, according to the UCONN Crash Data Repository. Seventeen of those crashes were in the last three years.

In video obtained by NBC News, U.S. border agents are seen trying to illegally force an injured and mentally unstable man across the border into Mexico, claiming he is not in their custody and assuming he is Mexican because "he looks like it."

NBC News was made aware of the video, shot in March 2017 at the border crossing in Calexico, California, by a whistleblower. A videographer was in place because Mexican agents believed American agents used the place to frequently try deporting migrants covertly, according to a source close to the Mexican government.

Mexican nationals can only be sent back across the border through the consulate, and migrants from elsewhere must be sent back to their country of origin.

The incident resulted in a complaint from Mexican officials to the U.S. Customs and Border Patrol and the agents were reprimanded after an investigation but kept their jobs. A CBP representative told NBC News it an "isolated incident."

Rebuffed by the Mexican agents, the CBP border agents can be seen allowing the man to walk into traffic on the American side of the border. NBC News learned that he was left in a U.S. park and that agents lost track of his whereabouts for nearly a month before he was eventually hospitalized.

Police have identified the woman whose torso, leg and other body parts turned up inside a Brooklyn park this week as a 26-year-old from the borough who's been missing for months. 

The name of the woman, Brandy Odom, was released Wednesday, a day after more body parts turned up in Canarsie Park, according to police. 

Law enforcement sources tell News 4 that Odom's mother contacted police when she learned of the investigation into the dismembered body at the park. She believed it was her daughter, and went to the police precinct and told investigators her daughter had a distinctive tattoo -- the word "chocolate" above her left breast.

Detectives gave Odom's mother a photo, which she positively identified as Odom. Police said Odom had never been reported missing before her body was discovered.

Officials have been on the park grounds since Monday investigating the discovery of the woman's torso. Investigators later found a leg, then several bags containing body parts. Police would not say what kind of body parts were inside the bags, but cops believe they are all part of the same person.

It's not clear at this point how Odom may have died or who is responsible for her death. 

A woman walking her dog first made the grisly discovery of the torso at around 6 p.m. Monday, about 15 feet off the edge of the pedestrian path.

The torso had been found face down, covered in leaves but not buried, law enforcement sources say. 

It's not known how Odom's body ended up there or how long she had been there.

Community activist Tony Herbert said he thinks the body must have been dumped there recently, adding that "it's a very active park." 

"This body couldn't have been here that long," he said. 

A medical examiner will determine Odom's cause of death.

A three-alarm fire damaged a used appliance store on Tolland Street in East Hartford early Wednesday morning. 

The fire broke out around 2 a.m. and spread to the attic, causing the roof to collapse, officials said. 

“Most of the fire is knocked down now, but given the condition of the structure and just an astronomical amount of used appliances, washers, dryers, refrigerators throughout the building and in the back of the building, it’s going to be fairly tedious for us to get in there, get the material moved out of the way and make sure we can get it knocked down.” Chief John Oates, of the East Hartford Fire Department, said this morning. 

No firefighters were injured during the fire. 

The fire marshal will determine the cause of the blaze. 

State police are investigating a hit-and-run on Interstate 84 in Danbury early Saturday morning and the victim’s family is offering a reward for information that leads to an arrest and conviction in the case.

State police found Daniel Crawford Jr., 32, of Brewster, New York, dead on the shoulder of I-84 West, just before exit 2 in Danbury after receiving a 911 call around 1 a.m. Saturday reporting a person lying on the highway.

State police said Crawford’s family is offering a $5,000 reward.

Witnesses are asked to call State Police Troop A in Southbury at 203-267-2200 or text TIP711 with any information to 274637.

Interstate 84 West in Middlebury was closed for nearly two hours after a tractor-trailer carrying potato salad jackknifed, but the highway has reopened.

State police had the highway closed just before exit 16.

The truck was carrying 4,000 pounds of potato salad and Consumer Protection was called to the scene.

No injuries are reported.

The Naval Submarine Base in Groton was on lockdown after reports of a suspicious package, but the lockdown has been lifted.

Naval Submarine Base New London reacted to a suspicious package reported on base, near building 461, the former package store., around 9 a.m. Wednesday and  the unattended package was determined not to be a threat.

The Submarine Force Library and Museum, which is adjacent to the base, was closed to the general public, but the security lockdown has been lifted. 

An East Hartford man is accused of assaulting his ex, then assaulting a police officer who was trying to detain him Tuesday. 

Police said 23-year-old Trevon Quinitchett, of East Hartford, went into his ex’s apartment in the north end of Hartford Tuesday, assaulted her and stole items, then fled. 

The victim chased Quinitchett to his car, but he sped off, ran a red light and hit a vehicle on Kensington Street, pushing it into several others, according to police. 

After the four-car crash, Quinitchett grabbed the license plate and ran off. 

When Traffic Division Officer Noelia Resto found him, she tried to detain him, but Quinitchett punched her in the face and head, knocking her to the ground, then ran, police said. 

Officer Resto was able to get back up and ran after him, alerting other officers of his whereabouts during the chase, according to police. 

Traffic Officer Michael Taylor joined the chase, tackled Quinitchett and disarmed him of the screwdriver he was holding, police said. 

But Quinitchett resisted arrest and Sgt. Louis Raimundi helped take him into custody. 

Officer Resto suffered injuries to her head, neck, shoulder and face and was transported to St. Francis Hospital. She has since been released. 

Quinitchett’s vehicle was not registered or insured, his license was suspended and he had crack cocaine, according to police. 

He was charged with several motor vehicle violations, home invasion, robbery, larceny, disorderly conduct, evading the scene of an accident, assault on a police officer, interfering with a police officer, possession of narcotics and possession of narcotics within 1,500 feet of a school. 

An exit on Interstate 91 South in Enfield that has been closed since a tanker truck flipped over on Monday should reopen tonight.

The truck flipped over near Exit 49, causing 2,600 gallons of gasoline to spill, and officials from the state Department of Energy and Environmental Protection said 1,500 tons of soil have been excavated and they expect to be done in time for the exit to reopen around 10 p.m. Wednesday.

Three families on Kalish Avenue, which is located directly behind the crash site, remain unable to use their water, according to North Thompsonville Fire District Chief Earl Provencher.

Those residents and others in the neighborhood rely on private wells to pump water and using those wells could cause potentially contaminated groundwater to seep towards the homes and expand the overall area of contamination, according to Jeff Chandler, a supervisor with the Department of Energy and Environmental Protection (DEEP) Emergency Response Unit.

Though Connecticut Water said the gasoline spill has not affected Enfield’s public water, DEEP is working with the Department of Public Health (DPH) and the North Central District Health Department to locate private wells, which could be affected. Crews installed new wells between nearby private wells and the crash site which are equipped with devices to monitor for potentially contaminated groundwater.

Chandler said groundwater generally travels at a relatively slow pace of “feet per day,” but he said the soil consistency at the scene of the accident is sandy and porous, which could allow contaminated groundwater to move more freely.

The soil that has been excavated will be delivered to a local facility to be incinerated to burn off remaining hydrocarbons and allow for the soil to be re-used elsewhere.

Crews will need to backfill wherever soil has been excavated once that process is complete, and the CT DOT will have to inspect their work before the road can be reopened.

Since 2003, there have been 57 crashes between the exit 49 ramps and where they intersect with Route 5, according to the UCONN Crash Data Repository. Seventeen of those crashes were in the last three years.

Former House Speaker John Boehner announced Wednesday that he has joined the advisory board of a marijuana firm, saying that his "thinking on cannabis has evolved."

In a joint statement with former Massachusetts Gov. Bill Weld, who is also joining the Acreage Holdings board, Boehner said it was time for "serious considerations of a shift in federal marijuana policy."

"While the Tenth Amendment has allowed much to occur at the state level, there are still many negative implications of the Federal policy to schedule cannabis as a Class 1 drug: most notably the lack of research, the ambiguity around financial services and the refusal of the VA to offer it as an alternative to the harmful opioids that are ravishing our communities," the statement read.

Acreage, which owns marijuana cultivation facilities and dispensaries in 11 U.S. states, said the addition of Boehner and Weld to the board will help shift the conversation on legalization "overnight."

"These men have shaped the political course of our country for decades and now they will help shape the course of this nascent but ascendant industry," Acreage CEO Kevin Murphy said in a news release.

The move marks a significant shift for the former Republican Congressman from Ohio, who had previously said he was "unalterably opposed" to legalization. Boehner told Bloomberg in an interview published Wednesday that, much like the majority of the American people, his position on the issue has changed.

In fact, according to a latest Gallup poll, 64 percent of American support marijuana legalization and for the first time, a majority of Republicans — 51 percent — also support legalizing marijuana.

And while still illegal at the federal level, marijuana is legal for medical and recreational use in 28 states, accounting for more than 60 percent of the U.S. population. The Schedule 1 classification from the Drug Enforcement Administration forces the industry to endure some unique challenges. Shut out of banks, businesses can't get loans and shops are stockpiling cash, creating a significant security threat. Federal policy is also an obstacle in furthering research on marijuana’s medical uses and benefits, Boehner noted.

He says he believes legalizing marijuana can be helpful to the nation's veterans and as a way to help fight the U.S. opioid drug crisis. He wants to see federally funded research done and to allow Veterans Affairs to offer marijuana as a treatment option.

“We need to look no further than our nation's 20 million veterans, 20 percent of whom, according to a 2017 American Legion survey, reportedly use cannabis to self-treat PTSD, chronic pain and other ailments,” Boehner said. “Yet the VA does not allow its doctors to recommend its usage. There are numerous other patient groups in America whose quality of life has been dramatically improved by the state-sanctioned use of medical cannabis.”

Boehner and Weld's position puts the two Republicans at odds with many in their party, including Attorney General Jeff Sessions, who earlier this year rescinded the Obama-era policy of a hands-off approach to state-level legalization efforts.

Health investigators are still trying to determine the cause of the mysterious E. coli outbreak that affected one person in Connecticut, at least six people in New Jersey and 10 people in multiple other states, requiring a half-dozen hospitalizations. 

The Centers for Disease Control and Prevention issued an update on the investigation Tuesday, saying that public health investigators are still in the process of gathering information and “fingerprinting” the bacteria from those who were potentially infected with E. coli to determine if there is a common link in the bacteria strand.

Half a dozen cases of E. coli were reported in New Jersey’s Somerset, Hunterdon, Middlesex and Warren counties recently.

“Illnesses reported by investigators in New Jersey also included ill people who had a diagnostic test showing they were infected with E. coli bacteria. Laboratory testing is ongoing to link their illnesses to the outbreak using DNA fingerprinting,” the CDC said in a statement.

As of April 9, 17 people have been infected in seven states: New Jersey, Connecticut, Pennsylvania, Ohio, Missouri, Indiana and Washington. Those infected are between 12 and 84 years old, with the majority being female. 

Health officials say the outbreak started in late March. Though no deaths were reported, six people have been hospitalized with one developing hemolytic-uremic syndrome, a type of kidney failure.

A specific food item, grocery store or restaurant chain has not been identified as the source of the illnesses and because of this “state and local public health officials are interviewing ill people to determine what they ate and other exposures in the week before their illness started,” the CDC says.

E. coli can spread from an infected person, contaminated food or water, or by touching contaminated surfaces, the CDC says. It is very contagious and can spread quickly in places such as daycare centers and cruise ships.

Common symptoms of E. coli infection include diarrhea, vomiting, nausea and stomach pain.

Facebook CEO Mark Zuckerberg spent a second day answering questions from members of Congress on issues regarding user data collection and faced some harsh criticisms over his previous apologies and lack of action.

A 35-year-old man who was shot in the chest in New Haven on Wednesday afternoon is dead and police are investigating it as a homicide.

The shooting was reported on Chapel Street, between Winthrop Avenue and Norton Street, 12:21 p.m. and police found 35-year-old Eric Lewis, 35, of New Haven, who had been shot in the chest.

He was rushed to Yale-New Haven Hospital, where he died Wednesday afternoon, according to police.

Detectives from the department’s Major Crimes Division as well as the Bureau of Identification are investigating.

Police are asking for the public’s help.

Anyone who witnessed the shooting or who has information valuable to investigators should call detectives at 203-946-6304 or use the department’s anonymous tip-line at 866-888-TIPS (8477) or 203-946-6296.

Your daily commute along Interstate 84 is about to get faster along a heavily traveled corridor. 

A Department of Transportation project is underway to raise the posted speed limits in certain areas. CT DOT said the changes are aimed at reducing crashes and dangerous driving habits, such as drivers weaving and switching lanes to get around slower vehicles. 

Some commuters are already taking notice. 

Kevin Edmiston reached out to NBC Connecticut after observing the speed limit on his eastbound drive from Cheshire into Plainville had been raised to 65 miles per hour. 

However, he said, the signs on the westbound side of the same stretch of highway still say 55 mph. He wanted to know why. 

It’s all part of a bigger project still in progress to raise the speed limit in both directions from the Waterbury/Cheshire line to the Farmington/West Hartford line. 

The Connecticut DOT said traffic volume on that particular stretch of I-84 in both directions can range from 34,900 to 64,800 vehicles per day. 

A DOT study measured traffic speeds, which averaged 68 miles per hour with 85th percentile speeds of 77 miles per hour, far above the existing speed limit of 55. 

A DOT Traffic Investigation Report also analyzed three years of crash data along the route and concluded, “The majority of drivers determine their speed based on traffic and roadway conditions, driving at speeds they consider safe. If the speed limit is not in accordance with this, the majority of drivers will disregard the speed limit, which is what is currently being observed on this section of I-84. Studies indicate that a speed limit lower than a realistic operating speed does not result in lower operating speeds or a reduction of crashes.” 

Read the Traffic Investigation Report below. 

Under the DOT plan, the speed limits will change to the following: 

• From the Waterbury/Cheshire town line to the Sunset Avenue structure in Plainville, the speed limit will increase from 55 to 65 mph 
• From Sunset Avenue in Plainville to the Slater Road connector in New Britain, the speed limit will increase from 50 to 55 mph 
• From the Slater Road connector in New Britain to the Farmington/West Hartford town line, the speed limit will increase from 55 to 65 mph 

The same speed limit changes apply to both eastbound and westbound directions. Connecticut DOT hasn’t finished changing out all the speed limit signs just yet. 

Spokesperson Kevin Nursick said that project should be completed in the next three weeks. In the meantime, DOT said drivers must obey whatever speed limit is currently posted to stay within the lawful limits and avoid a speeding ticket. 

Mark Barden, who became a national advocate for gun control after losing his son in the Sandy Hook massacre, is considering a run for Congress.

Barden, whose son Daniel was killed in the Newtown shooting, is the co-founder of Sandy Hook Promise, a non-profit organization focused on preventing gun violence and advocating for gun control at the state and national levels. Now he is considering a run for Connecticut's Fifth District seat as a Democrat.

Congresswoman Elizabeth Esty, a Democrat, currently holds the seat. On April 2, Esty announced she would not run for re-election amid criticism and pressure to resign after she admitted to keeping her former chief of staff on after he was accused of threatening another female staff member.

Barden said he had not made a final decision. He released the following statement to NBC Connecticut:

“At this time, I am giving careful thought and consideration to running for Connecticut's 5th District seat. This is not an easy decision and I have consulted colleagues and partners who can assist me in making an informed decision - while also keeping in mind the impact this would potentially have on my family. I don't have timing on when a decision will be made, but I will make an announcement once I do.”

Dr. William Petit Jr., the lone survivor of a deadly 2007 home invasion in Connecticut and a current Republican state representative, is considering seeking the GOP nomination for the seat. 

NBC Connecticut, Telemundo Connecticut and NBC Universal are proud to present Project Innovation. We are awarding $225,000 locally to non-profits using tech-based approaches to solve real-life problems.

For more than 90 years, the Children’s Museum in West Hartford has been inspiring a lifelong love of learning and science in kids.

“It’s just a great place for kids to come and explore,” said Wendy Stone, a parent from Granby.

This year, it is one of six Project Innovation winners. NBC Connecticut and Telemundo Connecticut are awarding the museum $75,000 in grant money to teach local students about science, technology, engineering and math.

“It’s fantastic news because it’s going to let us do a lot of things that we wouldn’t be able to do otherwise,” said Education Program Coordinator Dan Butterworth. “We’re talking about getting into the districts that wouldn’t be able to fund this programming on their own.”

Through the grant they plan to expand the program to eight different schools and reach more than 1,000 kids.

Nationally, NBC Universal Foundation will award $5 million over the next two years to non-profits across the country.

Los Angeles County prosecutors are reviewing a sex crimes case against actor Kevin Spacey, NBC News has learned.

The case was presented to prosecutors April 5th by the Los Angeles County Sheriff's Department and is now under review by the Los Angeles County District Attorney's Office's Sex Crimes Task Force.

Refresh this page for updates.