A man was killed in the parking lot of a mid-rise apartment complex in the District Heights area Thursday, marking Prince George’s County’s first homicide of 2012.

Police were called to the complex at 2:18 p.m. for a reported shooting and arrived to find the man dead outside, said Cpl. Larry Johnson, a Prince George’s County police spokesman. He said the man had “trauma to the body,” but he declined to say if the trauma stemmed from gunshot wounds.

Johnson said police did not know who killed the man or why.