noel stevens murdered shauna tiaffay. he confessed to it.orge. 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." keith morrison: prosecutors marc digiacomo and pam weckerly had a big problem, and they knew it. the problem had a name-- noel stevens, "greyhound." noel is a very important piece of information-- keith morrison: sure. --but he's also the biggest risk. in the credibility sweepstakes, he's way down here somewhere-- absolutely. keith morrison: --and your defendant is way up there. and 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. keith morrison: he said, don't take the chance. they could say, this crazy, psychotic, homeless man did it on his own. keith morrison: who prevailed? she did. man 2: they called noel stevens. keith morrison: and so up went "greyhound" to the w

reporter: paula plans to make sure the daughter of shauna tiaffay never forgets. we talk about her mom and how much she loved her and what we think her mom would want for her now. that's all for this edition of "dateline." i'm craig melvin. thank you for watching. [theme music playing] >> good morning. >> and welcome. >> to this sunday. >> edition of morning joe. >> weekend. >> it was another. fast moving newsweek. >> here are some of the conversations. >> you might have missed. the washington. >> post. >> reports current and former usaid officials say usaid's ebola prevention efforts have been largely halted since musk and his allies moved last month to cut the global. assistance agency. >> and freeze. >> its outgoing payments. so i don't think they. >> put it back. >> a joke. >> well, this. >> is. >> the problem. it's a problem with a lack of transparency, where it's basically what they're saying is, hey, trust us, we've restored a lot of funding. you go back and you find out that that's not actually the case. and a lot of times, the agencies don't even have the