Post Mortem | The Sneak Attack on Katlyn Lyon

48 Hours correspondents Anne-Marie Green and Erin Moriarty discuss the murder of Katlyn Lyon Montgomery and why her family turned to TikTok to demand justice. They explore why the case evolved from a possible drug overdose to a homicide investigation and why police first suspected Katlyn’s roommate. Erin also shares what it was like to be in the courtroom.