Nuno Loureiro, director of MIT’s Plasma Science and Fusion Center, was found murdered in his Brookline home last week. Investigators linked the prime suspect, Claudio Neves Valente, to a separate December shooting at Brown University; Neves Valente was later found dead in a New Hampshire storage unit after a six-day manhunt. Both men attended Lisbon’s Instituto Superior Técnico, and authorities say three people were killed and nine injured. Motive remains unclear and investigators continue to probe the connections.
Murder Of MIT Fusion Scientist Takes Strange New Turns — Suspect Linked To Brown Shooting

Last week, Nuno Loureiro, a celebrated theoretical physicist and director of MIT’s Plasma Science and Fusion Center, was found murdered in his Brookline, Massachusetts, home. The killing shocked both the scientific community and local residents and has prompted an intensive, ongoing investigation.
Investigators Uncover Links Between Incidents
Authorities say the prime suspect, Claudio Neves Valente, has been linked to a separate deadly shooting that took place earlier in December at Brown University. After a six-day manhunt, investigators discovered Neves Valente’s body in a storage unit in New Hampshire.
Reporting by The Wall Street Journal and CNN indicates that Loureiro and Neves Valente both attended Lisbon’s Instituto Superior Técnico between 1995 and 2000. Neves Valente later pursued graduate work at Brown University, providing a potential connection to the campus shooting.
Background On The Suspect
Former classmates and professors described Neves Valente as intellectually gifted but sometimes volatile. Former Brown physics professor Scott Watson recalled that Neves Valente could be "sometimes angry" about seemingly small grievances — even complaining about food in dining halls — while also being academically advanced compared with his peers.
"He would say the classes were too easy — honestly, for him they were. He already knew most of the material and was genuinely impressive," Watson told The Associated Press.
Neves Valente is reported to have left Brown in early 2001 and returned to Portugal to work in telecommunications. Some classmates have suggested jealousy of Loureiro’s successful career may have been a factor in the attack, though investigators have not confirmed a motive.
What Happened At Brown
According to accounts in The Wall Street Journal, roughly an hour before the Brown shooting, a witness saw a man later identified as Neves Valente wearing a mask and thin clothing, which prompted a confrontation. The suspect responded angrily, asking, "Why are you harassing me?" Authorities say the shootings left three people dead and nine wounded.
Ongoing Questions
Investigators continue to work to determine why Loureiro was targeted and whether other factors motivated the attacks. Survivors, colleagues and loved ones are left with many unanswered questions as authorities assemble a clearer timeline and motive.
Key facts:
- Nuno Loureiro, director of MIT’s Plasma Science and Fusion Center, was murdered in his Brookline home.
- Claudio Neves Valente is the prime suspect and has been linked to a separate December shooting at Brown University.
- Neves Valente was found dead in a New Hampshire storage unit after a six-day manhunt.
- Both Loureiro and Neves Valente attended Lisbon’s Instituto Superior Técnico in the late 1990s; Neves Valente later studied at Brown.
- Authorities report three people were killed and nine injured in the shootings.
- Officials have not confirmed a motive; the investigation is ongoing.
The story remains fluid; authorities have urged anyone with information to come forward as they continue to piece together the events that led to these tragic incidents.


































