David Jonathan Brown, a 28-year-old Los Angeles resident and USC student, was arrested for the murder of psychology professor Bosco S. Tjan, LAPD Media Relations officials said.
Authorities were called to the Seeley G. Mudd building on the USC campus in the 3600-block of McClintock Avenue just after 4:30 p.m. Friday. Firefighters said they found a man dead at the scene.
Brown was taken into custody at the scene.
Tjan, who has been affiliated with USC since 2001, was a married father of one son.
Investigators said they did not yet have details on Brown's motive, other than it was a "personal dispute." He was being held on $1 million bail.