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Brown, MIT suspect had 200 rounds, laser sights as authorities feared hit list: US attorney

2:07
Authorities: Brown, MIT gunman shot self in New Hampshire storage unit 2 days ago
Cj Gunther/Reuters
ByAaron Katersky
December 19, 2025, 11:46 PM

It was Thursday morning when investigators definitively determined the same individual opened fire on a study group at Brown University and, two days later, murdered an MIT professor -- raising fears among law enforcement officials that the killer may have had other intended targets, according to the top federal law enforcement official in Boston.

"We had no idea if he had a hit list and these were just the first two stops on his tour," Leah Foley, the United States Attorney for the District of Massachusetts, told ABC News on Friday.

U.S. Attorney for the District of Massachusetts Leah Foley speaks with ABC News, Dec. 19, 2025.
ABC News

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Foley said that the suspect, Claudio Manuel Neves Valente, was found dead in the New Hampshire storage unit with two 9mm Glock firearms equipped with green laser sights, five magazines with nearly 200 rounds of ammunition and nearly $900 in cash. In his car, investigators said they found more ammunition and body armor.

"This was highly premeditated and he was definitely equipped for the mission that he sought out to do," Foley said.

Claudio Neves Valente, suspect in the Brown University shooting in Providence, in this undated handout image released, December 18, 2025.
U.S. Attorney Massachusetts via Reuters

Neves Valente, 48, died from a self-inflicted gunshot wound, police said, with authorities finding him Thursday night.

He is estimated to have died two days earlier, on Tuesday, based on the findings from an autopsy conducted on Friday and the investigation's findings so far, according to the New Hampshire Attorney General's office.

Two students were killed and nine others injured when a gunman opened fired in a lecture hall on Brown's campus in Providence, Rhode Island, on Dec. 13, officials said. Two days later, MIT professor Nuno F.G. Loureiro was fatally shot at his home in Brookline, Massachusetts, authorities said.

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Two pistols recovered with the suspect's body in the storage unit in Salem, New Hampshire, have been linked through ballistic evidence to the Brown and Brookline shootings, according to the FBI.

One of the pistols matches ballistics evidence recovered at Brown, and the other matches evidence recovered from the Brookline home, the FBI said Friday.

Additionally, a rapid DNA test of the remains of Neves Valente shows a preliminary match to DNA recovered from the Brown crime scene, according to the FBI.

A grey Nissan car is parked at a storage facility, where the Brown University shooter, identified by authorities as Claudio Neves Valente, took his own life, in Salem, New Hampshire, in this handout image released December 19, 2025.
FBI Boston via Reuters

Investigators were searching through the contents of three USB thumb drives found in the suspect's car to see if they contained clues about a motive. It is unclear at this time if the suspect had any other potential targets, according to people familiar with the investigation.

Foley said investigators believe Brown University and Loureiro were intentional targets, but they do not know why.

"I don't know that even if he had explained why, that that would be an answer that is satisfactory to anyone," Foley said. "He was evil."

The possibility that the killer could have struck again infused the manhunt with new urgency. Federal agents fanned out across four New England states and posted up at airports in Boston and Hartford.

PHOTO: Manhunt for Brown University shooter continues in Salem
Providence Police Officers join state and federal law enforcement agents searching for the Brown University shooter, in Salem, New Hampshire, U.S., December 18, 2025.
Cj Gunther/Reuters

"We had no idea if he was going to act again in New England or try to leave New England," Foley said.

Neves Valente had already switched license plates once, according to authorities. In the car, investigators said they found another expired plate.

The suspect was a former Brown graduate student who attended the school some 25 years ago, school officials said. He had enrolled as a Ph.D student in Brown's physics program in 2000 and attended for less than a year, before going on a leave of absence and then withdrawing.

Neves Valente and Loureiro were both Portuguese nationals and had attended the same physics engineering program at Instituto Superior Técnico in Lisbon, the school confirmed to ABC News.

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