Thanksgiving Poisoning Mom Chose The “Perfect Cover,” Says Victim's Father

A Thanksgiving dinner. A bottle of wine. One daughter dead. And a question investigators are now asking: could this be the work of a female serial killer? Authorities say North Carolina mother Gudrun Casper-Leinenkugel poisoned members of her own family during Thanksgiving dinner by allegedly lacing wine with acetonitrile, a chemical that converts to cyanide in the body. Her 32-year-old daughter, Leela Livis, died. Two others survived. But investigators say the story doesn't stop there. As they dug into Gudrun's past, authorities uncovered another death from 2007 involving the same chemical and reopened questions surrounding a third death in 2017. Now prosecutors are pursuing multiple murder charges as they continue to investigate whether these deaths are connected. In this episode of Criminally Obsessed, investigative reporter Anne Emerson sits down with Travis Peterson, Leela's father, for an emotional and revealing conversation about losing his daughter, the evidence that convinced him investigators got the right person, and why he believes Thanksgiving may have been the "perfect cover." Subscribe to Criminally Obsessed for exclusive true crime interviews, expert analysis, and the latest updates on the cases everyone is talking about.