The body found Monday morning on the Clarkston campus of Georgia Perimeter College has been identified as Alpha Oumar Diallo, 23, of Stone Mountain.

“An autopsy performed on Mr. Diallo this morning determined that he died as a result of strangulation and blunt force injuries to the head,” GBI spokeswoman Sherry Lang said Tuesday.

Lang said Diallo, who was not enrolled at Georgia Perimeter College, was last seen at 4 p.m. Sunday at his Stone Mountain home.

A passerby discovered his body in a grassy area near the school’s nursing building about 7 a.m. Monday.

Lang asked that anyone who was in the area of 662 North Indian Creek Drive on Sunday who may have seen Diallo or who has any information on his death call the GBI at 800-547-8477.