mark desisto: we contended that those conversations never took place.inmates, too, snitches. mark desisto: i never met a confidential informant thats going to inform just because he wants to be a nice guy or a good citizen. theres always something in it for him. keith morrison (voiceover): that woman, the star witness found by the cold case team, who said she saw the two men coming and going from taras house? mark desisto: could it be she made herself believe this over so much of a time to make sure the bad guy goes away? keith morrison (voiceover): dave mcmannis attorney, michael bross, said his view those detectives focused on the wrong man. said phil barrs accomplice must have been peewee st. john, the man whod turned in jewelry three days after tara went missing. michael bross: theres enough circumstantial evidence to believe that he was involved if not in the murder, but definitely in the complicity to cover it up. keith morrison (voiceover): the only thing that dave mcmannis was guilty of, said bross, was being a sarcastic guy. michael bross: the