FBI: Lone-Actor Behind Brown University Shooting Had No Terror Ties

The FBI and the U.S. Attorney’s Office released findings on the Brown University mass shooting (Dec 13, 2025) and the MIT professor’s murder in Brookline (Dec 15, 2025), concluding Claudio Manuel Neves Valente acted alone with no nexus to terrorism. Two 9mm pistols were legally purchased in Florida, and Valente had planned the attacks over several years while living a largely isolated life. The BAU aided the inquiry, determining the victims were symbolic of the shooter’s personal failures, driven by grievances and perceived injustices. He had no prior criminal history, and there is no ongoing public-safety threat, though investigators will provide updates as the investigation continues.