This week Dateline is digging into the high-profile case of Kaitlin Armstrong a yoga instructor who killed her romantic rival and pro cyclist Moriah Wilson as part of a love triangle. Keith Morrison shares a preview, including a conversation he had with a doctor who unknowingly helped the killer when she was on the run. » Subscribe to TODAY: youtube.com/@TODAY About: TODAY brings you the latest headlines and expert tips on money, health and parenting. We wake up every morning to give you and your family all you need to start your day. If it matters to you, it matters to us. We are in the people business. Subscribe to our channel for exclusive TODAY archival footage & our original web series. Connect with TODAY Online! Visit TODAY's Website: today.com Find TODAY on Facebook: facebook.com/today Follow TODAY on Twitter: twitter.com/TODAYshow Follow TODAY on Instagram: instagram.com/todayshow » Stream TODAY All Day: www....