The suspect, whose name has not been released, was arrested for possession of stolen property after he was found to have the ATM card of Richard Sprague, 47, who was found in the 100 block of Julian Avenue around 7:45 a.m. Sunday, police spokesman Officer Albie Esparza said.
Esparza said homicide inspectors are trying to determine whether the suspect was involved in Sprague's death.
Sprague was found after someone called police to report that a man had been lying in the street since at least 6:30 a.m. and hadn't moved, police said.
Sprague was pronounced dead at the scene. The case is considered a homicide, although police haven't disclosed the cause of death.