Investigators think there could be a link between the campus mass shooting at Brown University and the MIT professor who was later killed at his home — and law enforcement is now digging into a possible connection, TMZ has learned.

A federal law enforcement source tells TMZ … federal, state and local authorities are now looking into whether the fields of physics and engineering are a factor in the murders linking the two cases. No suspects have been identified or apprehended in either case.

This is a major shift in the investigation — especially since FBI Boston Special Agent in Charge Ted Docks said Tuesday there didn’t appear to be any connection between the two shootings.

The violence kicked off Saturday, Dec. 13, when a gunman went on a rampage at Brown University in Providence, Rhode Island — killing two students and injuring nine others. Providence Police have released enhanced video of a new person of interest tied to the campus shooting.

On Monday, December 15, Massachusetts Institute of Technology professor Nuno F. Gomes Loureiro was gunned down at his home in Brookline, Massachusetts shortly before 8:30 PM Monday.

The MIT professor worked in the Nuclear Science and Engineering Department and the Brown Shooting occurred inside the School of Engineering.

Brookline is 50 miles north of Providence.

Bonjour, everyone — or should we say buongiorno! We know you’re probably binging the fifth season of “Emily In Paris,” which dropped today, and we figured we’d share some of our favorite behind-the-scenes snaps from the show’s cast and crew!

ICYMI … Emily, played by Lily Collins, decided to ditch the City of Lights for the sunshine and splendor of Rome at the end of the last season .. and her decision makes for some really juicy drama in Season 5!

Then again, the show is still called “Emily In Paris,” so it’d be kind of weird not to shoot the series in the French capital — and we don’t think Collins or her costar, Ashley Park, could lose their soft spot for its landmarks, like the Eiffel Tower.

Still, a little hospitality went a long way for the show’s cast, who posed together while sharing some seriously sizable portions of pasta between scenes.

Mustard is on the beat and on his ex-wife Chanel Thierry‘s case, claiming she’s been blasting him on social media … and now he’s asking a judge to give him full legal custody of their kids over it.

In court documents, obtained by TMZ, Mustard — whose real name is Dijon McFarlane — says he wants sole legal custody of his and Chanel’s three children — Kiylan, 13, Kauner, 10, and Kody, 6.

The ex-couple shared legal custody of the kids under the previous order. At the time, the judge also specifically prohibited both of them from speaking in a “negative, disrespectful, or derogatory manner to or about the other” in their children’s presence or “within hearing distance of the child.”

In new court papers filed by attorney Samantha Spector, Mustard alleges Chanel violated that order by making disparaging social media postings about him … including Chanel posting to Threads on October 26, writing, “Dijon I know you are reading this, I’m so sick of your s***. You suck.”

He says she followed that up with “I’ve been divorced 3 years now and my ex husband continues to do things to purposely get under my skin … A man will treat your child according to how he feels about the mother. Mark my words.”

He also noted her posts concerning him seem to get the most attention online.

Mustard claims remarks like those “negatively impact the best interests” of their children and “undermine the proper functioning of the co-parenting process,” so he’s asking for sole legal custody of the kids.

He’s also requesting Chanel be hit with $30K in sanctions to teach her a lesson about violating court orders.

The wildly successful music producer married Chanel in 2020, and their divorce was finalized in 2024.

As part of their settlement, Chanel got a one-time buyout payment for spousal support in the amount of $315,000, and Mustard was ordered to pay $24,500 per month in child support.