San Jose: Triple homicide suspect’s past includes San Jose State library shooting

SAN JOSE — The man arrested on suspicion of fatally shooting three people at a South San Jose apartment earlier this week made news six years ago when he was accused of shooting at the San Jose State University library, part of a criminal record that details trouble with guns and bouts of mental illness.

Joseph Vicencio, 26, of San Jose, was arrested in connection with a shooting that killed three people at an apartment on Chynoweth Avenue on Sept. 16, 2025. His criminal past includes being...