A 19-year-old Berry College sophomore who was found “unconscious and unresponsive” by his roommate in their dorm Tuesday afternoon has died.

Floyd County Coroner Gene Proctor says he’s “not been able to determine what happened” to cause the death of David Shankles, a second-year student from Knoxville.

The roommate returned to the dorm room and discovered him, Proctor said. Campus security and emergency teams were called and immediately tried to revive the young man, using an AED and CPR.

He was then transported to Redmond Regional Medical Center’s emergency room, less than two miles from campus and was pronounced dead at 2:59 p.m., the coroner said. Proctor is sending Shankles’ body to the GBI crime lab for an autopsy in an attempt to learn what caused his death. Initial checks of his body and the dorm room yielded no clues, Proctor added.

Berry College posted a note to students, faculty, staff and on Facebook with news of the tragedy.