noel stevens murdered shauna tiaffay. he confessed to it.t by her husband, george. prosecutors had a tough decision to make and their case hinged on the outcome. here's keith morrison with the conclusion of "under a full moon". >> prosecutors mark digiacomo and pam weckerly, had a big problem -- [inaudible] >> noel is a very important piece of information. but he's also the biggest risk. >> the credibility scrape stakes, he's way down here something where. and the defender is way up. they're >> absolutely. >> so, they argued, these two prosecutors. she said put him on the stand. >> my thought was, you don't understand who george is and how sinister this was until you meet noel and say this is the person that he gave access to. >> he said, don't take that chance. >> they could say this crazy, psychotic, homeless man, the day on his own. >> prevailed? >> she did. >> the state calls noel stevens. >> so a point greyhound to the witness stand and offered his grisly story. >> i hate her in the. head >> when you hit her in the head, what happened?