williams, case closed? not so fast. investigators still had not found enough evidence to prove morrow shot steven, then a lucky break. a crucial clue was about to turn up want once again, keithrison. >> reporter: in september of 2006 doug johnson was walking on the beach thinking about his friend of 30 years, the murdered one-time d.j., steven b. williams. >> and i see this light on the beach, and i thought, now what can that be? i dropped my cell phone, and it had landed face up, and the panel was lighting up, and i walked over to it, and i picked it up, and it was ken clark, detective clark calling to telling me they had arrested. >>. >> reporter: real life is not quite like that. for all the suspicion of steven's friends, the murder case against harvey morrow was rather weak, no evidence sufficient to prove that harvey shot steven and dumped his body in the ocean. >> we were looking for steven's d.n. on the boat knowing that his death was caused by a gunshot wound it was pretty obvious that there should be something that said this is where it was. >> reporter: but there wasn't, no blood, no gun, no significant fingerprints. what they needed couldn't find, was something th