USC professor fatally stabbed by student on campus

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A University of Southern California student stabbed and killed the psychology professor who served as his mentor, authorities told the Associated Press, following what was described as a “personal dispute” on campus Friday afternoon.

David Jonathan Brown, a 28-year-old brain and cognitive science student, was being held on $1 million bail, according to the AP. Police haven’t detailed what led up to the killing in a building near the southwest edge of campus.

Campus public safety officers detained the student and turned him over to Los Angeles city police on Friday.

The university identified the victim as Bosco Tjan, an expert on vision loss who focused on age-related ailments. He was the co-director of USC’s Dornsife Cognitive Neuroimaging Center and had taught at the school since 2001.

Brown was one of five students who worked in the lab, according to the AP. Nathaniel Kwok, another student who worked in the lab, said students like Brown work on projects they developed under the supervision of Tjan.

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