Authorities have identified a person of interest in the Brown University mass shooting, three senior law enforcement officials briefed on the investigation told NBC News.

This comes after days of intense investigation and a manhunt for a gunman who opened fire inside the Barus and Holley engineering building on the Providence, Rhode Island, campus on Saturday. Two students were killed and nine other people injured.

Another person of interest was previously taken into custody, but that person was eventually released when investigators ruled them out as a suspect.

Michael Tabman, a retired FBI special agent in charge, joined NBC10 Boston on Thursday to discuss the possible connection being investigated between the shooting death of an MIT professor in Brookline, Massachusetts, and last weekend’s mass shooting on the Brown University campus.

Investigators released a series of surveillance videos and images of a person of interest, asking the public for help with the search.

The shooting has raised questions about safety and security on Brown’s campus and concerns about misinformation and AI-generated images circulated online due to the high-profile nature of the case.

Investigators are looking into whether the Brown shooting may be linked to the killing of an MIT professor at his Brookline, Massachusetts, home this week.

This is a breaking story. Check back for updates.

When he interviewed with Boston College coach Steve Addazio and didn’t get the job, Watson never relented. He interviewed again with Jeff Hafley and was in the running, before landing a position at Florida State.

Recently, after stops at FSU, Georgia Tech, and Auburn, Watson interviewed once more at BC. This time, everything fell into place with Bill O’Brien at the helm. Watson is now the first general manager in Boston College football history.

“Third time’s the charm,” Watson said. “Once the interaction began, it was a natural fit. It wasn’t like, ‘Oh my God, they finished 2-10. I’m afraid of that.’ No, I love the challenge. It’s an honor to have the opportunity.”

Watson first played competitive football at age 7 and immediately fell in love with the game. His mother ran track at Simon Gratz High School in Philadelphia, which explains Watson’s blazing speed.

Scarlett, a single mother, worked multiple jobs to provide for her family. Watson said he never went a day without thinking they were the richest people in the world. His mother always ensured he had the best cleats and bike helmet to keep up with his peers.

“Amazing woman. Just amazing,” Watson said. “She taught me discipline. She instilled that hard work will always win. She taught me to never give up.”

Watson starred at Deerfield Beach High and garnered heavy national interest. BC entered the picture relatively late, and Watson always smiles when he thinks about his first interaction with coach Tom Coughlin.

When Coughlin and assistant coach Randy Edsall entered Watson’s living room, before they could get a word in, Scarlett turned to them and addressed the elephant in the room.

“You’re not going to make him turn Catholic, are you?” Watson recalls his mother asking.

Coughlin clarified that they were not, and a conversation flowed naturally from there. Watson helped the Eagles to a 9-3 season as a freshman in 1993, highlighted by wins over No. 13 Syracuse, No. 25 Virginia Tech, and No. 1 Notre Dame.

Watson gravitated toward the gritty nature of the program under Coughlin. The Eagles couldn’t wear earrings or have facial hair below the bottom lip. There was no indoor facility, so practices were outdoors in the cold. Games were won in the trenches, and opposing players left battered and bruised.

“Tom Coughlin taught me discipline,” Watson said. “He taught hard work. He taught me to always have a plan, and then if that plan didn’t work, make sure you had another plan.”

The Eagles finished 7-4-1 the next year under Dan Henning. Watson, a wide receiver and returner, teamed up with quarterback Glenn Foley for one season, Mark Hartsell for two, and Matt Hasselbeck for one.

Watson finished his career with 93 catches for 1,215 yards and five touchdowns, along with a rushing TD and two punt returns for scores.

Watson dreamed of a long and fruitful career in the NFL. After a brief stint with the Cowboys in 1997, he realized that wasn’t feasible and pivoted to helping the next generation.

Watson spearheaded the creation of a highly successful travel football program in Georgia, the Gwinnett Chargers, that has since sent dozens of players to Division 1 college programs and several to the NFL.

He then worked for a company called 3Step Sports that helps young prospects gain exposure, and Grayson High School in Loganville, Ga., as a college recruiting liaison. Mentoring and inspiring kids was fulfilling, yet he knew he was capable of even more.

Eventually, that opportunity came at Florida State under Mike Norvell as director of player relations and a pro scout liaison. Watson was later the director of scouting at Georgia Tech for two seasons, followed by assistant general manager/recruiting at Auburn for two years.

BC was far away geographically, yet very much on his mind and in his heart. When everything finally aligned, it felt serendipitous.

“I tell kids all the time, if you look at my story and you look at my journey, anything is possible, as long as you keep working hard and keep believing in you,” Watson said.

When Watson speaks with parents, they rarely discuss football. Watson, whose sons, Kenyatta and Jett, have been highly recruited, tells them what to expect.

He prides himself on his ability to build and maintain relationships, which he believes pays dividends initially and when players transfer.

“One of the things that we needed to do was do a great job of upgrading how we acquire talent,” O’Brien said in a BC Athletics video. “Kenyatta has an unbelievable track record.”

Watson referenced Vanderbilt, Virginia, Georgia Tech, and Duke as prestigious academic institutions that have revitalized their football programs. If they can do it, Watson said, so can BC.

Director of athletics Blake James called the hiring a “huge win,” referring to Watson as someone who can help the Eagles compete on a national level.

“He’s someone who understands what it means to be a Boston College student-athlete and how that’s different from other places,” James said.

As Watson got off the plane Dec. 7, and arrived for work the following day, it felt surreal to complete a dream nearly 30 years later.

With notes from grateful alumni on his desk, and a warm welcome from O’Brien and Co., it immediately felt like home again.

Then, it was time to work.

“Let’s build this thing back up,” Watson said.

Trevor Hass can be reached at trevor.hass@globe.com. Follow him on X @TrevorHass.

Early Sunday marks the final hours of astronomical fall and the start of astronomical winter, or the winter solstice, which is at 10:03 a.m., Sunday this year. It is also the longest night of the year.

Behind the mild day on Friday will come a colder one for Saturday. But this is very short-lived and certainly not a very intense cold. Temperatures will start in the 20s and end up in the 30s to low 40s as warmer air will already be streaming into the region. You’ll notice some high clouds in the afternoon, along with a light wind, a marker of warm air advection.

Some snow showers will brush through Northern New England on Saturday.

Saturday night, a light southwest breeze will keep temperatures from falling too much, holding to around 30 all night long.

With that sort of a springboard, readings on Sunday will reach into the mid-40s along with a blend of clouds and sun.

Cold air drives in behind Sunday’s milder temperatures for a cold start to Christmas week.

Looking further ahead, there’s a small chance of some snow in the couple of days before Christmas. Whether or not we would end up with an inch on the ground in Boston on Christmas morning is still unlikely, but it’s not a zero chance.

Greater Boston: Look for plenty of sunshine on Saturday with temperatures in the mid- to upper 30s. A blend of clouds and sunshine is on tap for Sunday with temperatures in the low to mid-40s.

Central/Western Mass.: Look for sunny skies with temperatures just about freezing on Saturday and a little bit of a breeze. It’s near or a little above 40 and blustery on Sunday with partly sunny skies.

Southeastern Mass.: Temperatures will reach the low 40s on Saturday with mostly sunny skies and a bit of a westerly breeze; it’s in the mid- to upper 40s on Sunday with sun and clouds.

Cape and Islands: Temperatures will reach the low 40s on Saturday under an abundance of sunshine. Some clouds mixed with the sun on Sunday, with temperatures in the mid-40s.

Rhode Island: Mostly sunny on Saturday with highs in the low 40s, then on Sunday, look for partly sunny skies and highs in the mid-40s.

New Hampshire: Look for a dry weekend with temperatures right around freezing on Saturday under sunny skies and near 40 on Sunday with partly sunny skies. It will be colder in the mountains by about 10 degrees.

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