Authorities are investigating a suspicious death as a homicide after a man's body was found over the weekend at a southeast Oklahoma City home.Around 1:45 a.m. Sunday, police responded to a report of a dead person inside a trailer home near Douglas Boulevard and Interstate 40. When officers arrived, they found a 55-year-old man and attempted to perform live-saving measures.Authorities, however, pronounced the man dead shortly before 2:40 a.m. at the scene. The Oklahoma City Police Department identified the man as Clifton Whitetree.Police said Whitetree had injuries consistent with homicide.No arrests have been made, and the case is under investigation. The Oklahoma City Police Department asks anyone with information about the case to call the homicide tipline at 405-297-1200.