A 29-year-old man was killed and another man was wounded in a double shooting in Manassas.

Prince William County police said officers responded to a report of shots fired near Emerald Drive and Stonington Lane at about 9:15 p.m. Thursday. Police found William H. Welch III, of Leesburg, dead from gunshot wounds to the upper body.

Another man, a 22-year-old from Manassas, also suffered gunshot wounds to his upper body. He was flown to a trauma center and is expected to survive.

Police said the incident appears to have only involved those two men, who knew each other. Police still don't know why the shooting happened because the surviving man needed immediate medical treatment.