Dec 06, 2016 12:29 PM EST By Julia Ramirez, UniversityHerald Reporter

The University of Southern California student suspected of stabbing a University of Southern California professor was identified. Los Angeles Police was responsible for the identification of the said graduate student.

Twenty-eight year-old graduate brain and cognitive science student David Jonathan Brown was arrested on the allegations of killing Bosco Tjan. Tjan was USC's Dornsife College of Letters, Arts and Sciences was a professor of psychology. Tjan oversaw Brown with four other students who worked in the lab with the the professor.

The USC Department of Public Safety reported that investigators hypothesized the attack was the consequence of a personal disagreement, according to ABC News.

Brown's bond cost $1 million. It is not verified if Brown has an attorney.

C.L. Max Nikias, University of Southern California president, identified Tjan as the victim through a communication sent to staff and students. Tjan, who also served as co-director of the Dornsife Cognitive Neuroimaging, became a member of the USC faculty in 2001 and was an expert in cognition, vision, and perception.

Associated Press reports that fifty year old Tjan was a married father of one.

LAPD reports that Tjan was murdered around 4:30 p.m. inside the Seeley G. Mudd building. The police arrived at the scene of the attack and arrested a male student. However, the student's name was not released.

Nikias said in his letter that the Department of Public Safety officers immediately responded and apprehended the suspect on the vicinity. It has been confirmed that the suspect was a student and is detained by the Los Angeles Police Department. He was proud for the quick response of the Department of Public Safety. He applauded the university counselors for immediately being at the scene of the crime.

Nikias announced that Varun Soni, the university's dean of religious life, will unite the campus together for reflection and prayer.

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