Suspect in Brown University Shooting and Death of MIT Professor Recorded Confessional Videos, D.A. Says

Claudio Manuel Neves Valente, the suspect in the deadly December shooting at Brown University and the killing of a Massachusetts Institute of Technology professor two days later, left behind videos in which he allegedly described planning the Brown attack, according to the U.S. Attorney’s Office for the District of Massachusetts.

Investigators executed a federal search warrant on Dec. 18, 2025, at a storage facility Neves Valente, 48, used, the U.S. Attorney’s Office said in a press release issued Tuesday, Jan. 6. During the search, authorities reported finding a series of short videos recorded after the shootings.

In the recordings, Neves Valente allegedly said he had been planning the Brown University shooting for a long time, the press release states. While he reportedly described Brown as his intended target, officials said an initial review of the evidence did not reveal a specific motive for targeting Brown students or the MIT professor.

Two people were killed and nine others were injured in the Brown University shooting on Dec. 13, 2025. The victims were identified as Mukhammad Aziz Umurzokov and Ella Cook, 19.

Two days later, on Dec. 15, 2025, Nuno F. G. Loureiro, 47, a professor at MIT, was found at his home in Brookline, Mass., with apparent gunshot wounds. He was pronounced dead the following morning.

On Dec. 18, 2025, authorities announced that Neves Valente was found dead in a New Hampshire storage facility from what they described as a self-inflicted gunshot wound.

In the same press release, officials claimed Neves Valente showed no remorse in the videos. They also said the Department of Justice released transcripts of the recordings—translated from Portuguese to English—alongside the press release.

In one excerpt, Neves Valente allegedly said he had been “without caring” for a long time, adding that he did not regret what he did and joking about an eye injury he claimed to have suffered.

He also reportedly said the Brown attack did not unfold the way he intended. Neves Valente was briefly enrolled at Brown as a graduate student in the physics department in the early 2000s, according to the press release.

In another portion of the transcript, he allegedly said he did not want to carry out the attack in an auditorium and that he had multiple opportunities earlier in the semester but repeatedly backed out.