FBI reveals Brown University mass shooter began plotting massacre as early as 2022, blamed victims

Two Brown students, Ella Cook, 19, and Muhammad Aziz Umurzokov, 18, were killed in the on-campus attack and nine other people were wounded.

Valente, a former physics prodigy, used violence to overcome his shame and punish those he felt contributed to his downfall, investigators found.

The FBI said the attacks were meticulously planned over several years in isolation.

Valente began plotting the Brown University massacre as early as 2022, renting a storage unit in Salem, New Hampshire, to stash his weapons.

Officials said that because of his transient lifestyle and social isolation, Valente did not have family or peers to report warning signs to authorities.

The FBI noted both firearms, a Glock 34 used at Brown University and a Glock 26 used in the murder of Loureiro, were legally purchased by Valente from a Florida pawn shop in 2020 and 2022.

Officials said the multi-agency probe into Valente's motivations involved scouring more than 11,000 surveillance files, analyzing over 2,100 audio and video files from his personal devices, and conducting upward of 260 interviews.