what >> meanwhile, detective richard birdsall was chippin away at the case but far too slowly for thepolice departments, stil under fire for not preventin a. murder the detectives had foun some connections among the three suspected conspirators but not nearly enough to go to court. >> when you have to go arres 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 eve 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 t do it and make arrests >> coming. up fred and frank finally star talking. >> we had 60 plus phon conversations between them >> are you doing bud >> it has been a rotten, rotte time >> but will it help detectives catch the killer >> when dateline continues ♪breeze driftin' on by...♪ ♪...you know how i feel.♪ you don't have to take... [coughing] ...copd sitting down. ♪it's a new dawn,...♪ ♪...it's a new day,♪ it's time to make a stand. ♪and i'm feelin' good.♪ start a new day with trelegy. no once-daily copd... ...me