The suspect accused of killing two Brown University students and a Massachusetts Institute of Technology professor was ruled to have committed suicide in a storage unit two days before he was found.

An autopsy found that Claudio Manuel Neves Valente shot himself in a Salem, New Hampshire, storage unit on Tuesday, according to the New Hampshire Department of Justice Office of the Chief Medical Examiner. That was two days after the Brown University mass shooting and one day after the murder of MIT professor Nuno F.G. Loureiro, 47, in his own home.