investigator rudy malano. >> so i have a field call in long beach. >> okay. >> it is a unidentified caucasian male. they might have a missing person's match on him. they don't know yet. >> okay. thanks. >> mm-hm. less than 15 minutes before we're called into the field with rudy, one of l.a.'s 33 coroner investigators, the department's first responders. so what do we know about this death? >> well, as far as we know, it's undetermined at this point. it's possibly a missing person out of long beach. hopefully, i can identify him at the scene. >> so about how many dead bodies have you investigated during your time at the coroner's office? >> in the thousands. >> and when you hear that there's a body laying face down in the river, what does it sound like to you? >> it could be anything. it could be homicide, suicide, natural, accident. i just try to keep an open mind