Overview
- Police say Claudio Neves-Valente was responsible for the Dec. 13 Brown University attack that killed two students and injured nine and for the Dec. 15 shooting of MIT professor Nuno Loureiro, who died hours later.
- Law enforcement officials report no recent contact between Valente and Loureiro and describe the Brookline killing as a deliberate, one-sided act.
- A leading Portuguese fusion official says Valente may have fixated on Loureiro as a symbol of success he failed to achieve, emphasizing there was no active rivalry.
- Former classmates recount a brilliant but struggling student and suggest serious mental-health problems and resentment over an abandoned academic career, while a Técnico spokesperson says the school sees no link to their time there.
- Valente briefly studied physics at Brown in 2000–2001 before withdrawing, later returned to the U.S. via the diversity visa program, lived in Miami, and was found dead by suicide days after the attacks; the DHS chief announced a pause to that visa program.