i had no idea what could have happened. >> no enemies. i mean, it made no sense. just who would want to kill her. >> after keith was released the night of his interview with detectives, he headed straight to his friends, the bradleys. they were floored to hear the line of questioning that he recounted. what was up with his marriage, his alibi, the gun he owned? >> he had been questioned to the point that he almost felt like they thought he had done this. >> son aaron also got called down to the station that same evening. and he, too, was questioned about his parents' marriage. >> notice anything lately in their relationship as far as any problems or anything like that? that you're aware of anything? >> no. nothing. >> was there any money troubles? was there any relationship, things that we knew of? >> but to a person in the griffiths' circle, the very idea that keith might know something about julie's death was, well, just flat-out crazy. >> i knew he didn't do it.