Brown shooting and murder of MIT professor were ‘symbolic,’ FBI concludes

Nuno F.G. Loureiro, a professor at the Massachusetts Institute of Technology, has been identified as the man fatally shot at a home in Brookline on Dec. 15, 2025. (MIT)

(WASHINGTON) — The shootings in December that targeted Brown University and an MIT professor were “symbolic in nature,” according to a report released by the FBI.

Claudio Manuel Neves Valente, a Portuguese national and a legal permanent resident who had been living in Miami, Florida, committed a mass shooting at a building on the campus of Brown University in Providence, Rhode Island, before driving north to Brookline, Massachusetts, to kill an MIT professor, authorities said.

Two students died and nine others were injured in the shooting at Brown University on Dec. 13, 2025, and Nuno F.G. Loureiro, an MIT professor, was shot and killed at his home in Brookline by Neves Valente, two days later.

The shooting at the Ivy League school, where the 48-year-old Neves Valente had previously been a physics graduate student, rocked the tight-knit community in Providence.

The suspect was found dead from a self-inflicted gunshot wound in a storage unit in New Hampshire following a dayslong manhunt, authorities said.

“Based on analysis of the information and evidence gathered throughout the investigation, the FBI assesses Neves Valente’s victims were symbolic in nature,” the FBI said in a release. “Brown University as a whole and Dr. Loureiro represented to the shooter his personal failures and injustices he perceived were inflicted by others over time. By attacking them, Neves Valente was likely able to overcome his shame and envy by using violence to punish those communities that he perceived contributed to his downfall.”

Portugal’s Instituto Superior Técnico (IST) previously confirmed to ABC News that Neves Valente and Loureiro had studied in the school’s physics engineering program between 1995 and 2000.

The FBI determined Neves Valente had no criminal record and the shooting had no nexus to terrorism.

”The FBI has determined that Neves Valente was committed to conducting the attack and had completed his planning,” the report said. “He considered, planned, and prepared for the mass shooting at Brown University in increments over a period of several years in isolation, spanning multiple geographic locations. Neves Valente’s transient lifestyle, long-term planning, and social isolation provided little to no opportunity for bystanders to observe and contextualize the significance of his behaviors.”

The bureau’s report added, “The shooter lacked traditional support, such as family, peers, and authority figures, who would have been able to observe any potential warning signs and contact law enforcement.”

More than 1,327 audio files recovered after the shooting made by Neves Valente outline his thoughts for carrying out the shooting, according to the FBI.

“The FBI believes the shooter experienced a failure to thrive, long-standing suicidality, and his current situation was incongruent to where he felt he should be at this stage in his life. As his failures outweighed successes, his paranoia increased, compounding his continued inability to thrive, leading to him being mentally unwell and committed to dying. However, mental health stressors alone cannot fully explain the attacks that occurred.”

The FBI said they recovered guns at a storage facility used by Neves Valente in New Hampshire that matched the guns used to carry out the attack.

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