A man near the University of Southern California fought back against three armed would-be robbers, killing one of them with a gun they dropped during the altercation. Three armed men in their 20s exited a vehicle early Saturday morning in South Los Angeles and attempted to rob the unidentified man, Los Angeles Police Department spokesperson Norma Eisenman told the Los Angeles Times. An altercation broke out after the victim resisted complying with the suspects. One of the suspected robbers then dropped his handgun, and the victim picked it up and shot the suspect, according to police.