Did Reddit user help track Brown University shooter before police?

A Reddit user’s detailed tip about spotting suspect Claudio Valente near Brown University accelerated the investigation into the shooting and MIT professor Nuno Loureiro’s murder, per the unsealed affidavit. Police corroborated it with surveillance and records before finding Valente dead by suicide. Authorities credit the tip but stress it was one of many leads in the multi-state manhunt.