The coroner's office initially said it was not clear whether the remains belonged to a human or an animal.
Sunday afternoon, the coroner's office confirmed to Eyewitness News that the remains were that of an unidentified male. The case has been listed as a homicide.
Los Angeles police officers were called to Willoughby and North Genesee avenues on Saturday to investigate a foul odor. That's where officials found the decomposing remains wrapped up inside a truck.