harvey morrow's lies caught up with him. uncovered that the salesman out of montana used car lot was a wanted man. harvey was arrested and extra indicted to california, charged with the murder of steven b. 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. once again, keith morrison. >> reporter: in september of 2006, doug johnson was walking on the beach, thinking about his friend of 30 years, the murdered one-time dj steven b. williams. >> and i see this light on the beach. and i thought, "now, what can that be?" i'd 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 tell me that they had arrested harvey. it was a real great sense of relief. it was almost indescribable. >> reporter: which is perhaps where the movie version of this story would end. but real life is not quite like that. f

where was harvey morrow. angeles detectives were determined to question him about the murder of steven b. williams. harvey had drained the former radio star's bank account and then skipped town. the con man's lies were about to catch up with him. here again is keith morrison with "who killed the radio star?" >> reporter: it was september 2006 when a smooth-talking stranger walked into pete's auto dealership in great falls, montana and got himself a job as a used car salesman. >> he was quite the character. wasn't your typical car salesman persona. >> reporter: joe parsetich was the finance manager at pete's auto. he was at the dealership the day the new guy started. >> he was very sure of himself to the point of a little bit smug. in montana, where you have a lot of down-to-earth meat-and-potatoes people, where they're very friendly towards one another, having somebody with a smug, cocky attitude isn't going to go over very well at times. >> reporter: still, joe was friendly in the way montanans are known for