Police are investigating a potential connection between the Saturday shooting at Brown University and the Monday killing of an MIT professor in his home, based on information that has emerged in the last 24 hours.

Multiple people familiar with the investigation told several outlets that federal, state, and local authorities are now examining evidence that the two crimes, which took place less than 50 miles apart, may be linked, marking a significant shift in both stalled investigations.

The violence began Saturday afternoon when an unidentified gunman killed two Brown University students — Ella Cook and Mukhammad Aziz Umurzokov — and injured nine others after opening fire inside Brown’s Barus & Holley engineering building.

48 hours later, an assailant shot MIT professor Nuno Loureiro multiple times inside his Brookline, Massachusetts, home.

Authorities have yet to identify suspects in either case, and initially stated in a Tuesday press briefing that there “seems to be no connection” between the two shootings.

Providence police and the FBI have steadily released images and video depicting two persons of interest walking the streets around Brown University before and after the shooting, asking the public for any information to identify them.

ENHANCED VIDEO: We are releasing an enhanced video of the person of interest in the Brown University incident. Footage was captured on the East Side of Providence on Saturday afternoon before the incident.

Please share widely and contact the official tip line if you have… pic.twitter.com/mewBSflOiO

— Providence Police (@ProvidenceRIPD) December 16, 2025

Surveillance footage from Brown University captured the alleged shooting suspect — wearing a dark jacket, mask, and hat — walking around campus for hours before the attack around 4 p.m. Saturday. Multiple law enforcement agencies have expanded their search for video evidence, releasing a new map that widens the area of interest around the university.

A second person of interest was identified on Wednesday, depicted wearing a blue jacket and green hood, carrying a white satchel in the area of the shooting.

ENHANCED PHOTO: Investigators are asking for the public’s help in identifying and speaking to the individual shown in this photo who was in proximity of the person of interest.

Anyone with information is urged to contact the tip line at 401-272-3121. pic.twitter.com/D1reRPCdZV

— Providence Police (@ProvidenceRIPD) December 17, 2025

Authorities urge anyone with information about either incident to contact law enforcement immediately at 401-272-3121.

#BREAKING: The FBI and @ProvidenceRIPD are releasing new images of a person of interest in the mass shooting at Brown University on 12/13/25. The #FBI is offering a reward of up to $50,000 for information leading to the identification, arrest, and conviction of the individual.… pic.twitter.com/OhpnsN9fds

— FBI Boston (@FBIBoston) December 15, 2025

The Trump administration will begin efforts to denaturalize certain foreign-born individuals with United States citizenship over fraud concerns — marking a massive expansion of the federal government’s immigration crackdown.

Personnel at United States Citizenship and Immigration Services (USCIS) were issued new guidance on Tuesday to “supply Office of Immigration Litigation with 100-200 denaturalization cases per month,” according to The New York Times.

“It’s no secret that U.S. Citizenship and Immigration Services’ war on fraud includes prioritizing those who’ve unlawfully obtained U.S. citizenship — especially under the previous administration,” USCIS spokesman Matthew Tragesser said in a statement.

“We will pursue denaturalization proceedings for those individuals lying or misrepresenting themselves during the naturalization process. We look forward to continuing to work with the Department of Justice to restore integrity to America’s immigration system,” he said.

Since 2017, more than 120 such cases have been filed, according to The New York Times, citing Department of Justice data.

The effort comes as President Donald Trump pushes accusations that Democratic Minnesota Rep. Ilhan Omar entered into a fraudulent marriage with her brother in order to obtain American citizenship.

Trump’s Border Czar Tom Homan said last week that the Trump administration is investigating Omar for immigration fraud.

Omar responded, saying administration officials are “sick” and that they would not find anything.

Omar, who was born in Somalia, came to the United States in 1995 after her family was given asylum, according to Fox News. In 2000, she became a naturalized citizen.

Omar had a religious marriage with Ahmed Abdisalan Hirsi in 2002. Despite that, she entered into a legal marriage with British national Ahmed Elmi while she continued having children with Hirsi, Fox News reported.

Omar and Elmi reportedly separated in 2011 and formally divorced in 2017. She then married political consultant Tim Mynett in 2020.

It is not clear if Omar will be the subject of USCIS’s new campaign of scrutiny.

If she’s found to have committed the alleged fraud, Omar could face up to five years in prison, a $250,000 fine, and deportation, Fox reported. She may also face charges in Minnesota for allegedly violating the state’s incest laws, which could result in a 10-year prison sentence.

In another recent example, the federal government stripped Salvadoran-born immigrant Jorge Antonio Graciano Lara of his United States citizenship, which he obtained by lying about his criminal past as a child sex offender.

Between 2012 and 2016, Graciano Lara raped his stepdaughter, who was younger than 14 years old at the time, on “several occasions” at their home in Montgomery County, Maryland, while the child’s mother was at work, according to court documents. In 2015, he received his citizenship by lying about his crimes on his naturalization application and in an interview with a federal official.