A Binghamton University cultural anthropology graduate student was charged with second-degree murder in the stabbing death of BU Professor Richard T. Antoun, according to a report from The Press & Sun-Bulletin.

Abdulsalam Al-Zahrani, 46, was taken to the Broome County Jail at 1:30 a.m. Saturday, Broome County Sheriff’s Sgt. Paul Carlson said in the report.

He was arraigned Saturday morning in Town of Vestal court.

Antoun, 77, was stabbed four times with a 6-inch kitchen blade in Science 1 around 1:45 p.m. He died at Wilson Memorial Hospital Friday afternoon.

Both campus and state police are investigating the incident, and according to a B-Line report, Science 1 will remain closed until 5 p.m. Saturday.

Al-Zahrani is a cultural anthropology graduate student working on his dissertation, according to the school’s Web site.