what >> meanwhile, detective richard birdsall was chipping away at the case.he likes of his bosses at the long beach police departments, still under fire for not preventing a. murder the detectives had found some connections among the three suspected conspirators. but not nearly enough to go to court. >> when you have to go arrest everybody. i'd love to. but do i have probable cause? no, i don't really. i have to prove. more >> and you couldn't even say that either one of those people was a suspect? >> correct. one and i was 16 when i started, i was five two when i finish. there was so much pressure to do it and make. arrests >> coming. up fred and frank finally start talking. >> we had 60 plus phone conversations between them. >> are you doing bud? >> it has been a rotten, rotten time. >> but will it help detectives catch the killer? >> when dateline continues. n dateline continues see yourself. welcome back to the mirror. and know you're not alone. because this is not just a mirror. it's an unstoppable community. come on, jesse! one more! it's every workout.