death and how it comes knocking. we can't avoid it. it's just something that we have to prepare for. >> this man's body will wait in the crypt until his family recovers him. but what about those whose next of kin never come calling? >> well, i'm sorry to say this is the los angeles county coroner's office. the police discovered her unresponsive. >> for every death, field teams have 24 hours to track down relatives. >> i'm looking for her family. >> when they can't do it, the case falls to investigator joyce catto. >> i'll immediately try and tap into their priorre, arrest history, dmv, vehicle registration, missing persons to locate the families. >> when you do have those cases