A South Carolina State University student was shot to death outside a dormitory Friday, and the police were searching for four suspects who left the campus. The Orangeburg County coroner identified the victim as Brandon Robinson, 20. Chief Mernard Clarkson of the campus police said the police did not know what led to the shooting outside the Hugine Suites dormitory. The school, in Orangeburg, has an enrollment of about 3,200 students.