Karl Karlsen, convicted of murdering his son Levi and first wife Christina, will be the subject of an upcoming episode of ABC 20/20: The Interrogation Tapes. The episode, titled “Sins of the Father,” will air on April 23, 2024, at 10 p.m. ET and delve into the interrogation that led to Karlsen’s conviction. Karlsen, initially convicted of second-degree murder for Levi’s death in 2013, later pleaded guilty to first-degree murder for Christina’s death in 2020. He is currently serving a life sentence without parole. The episode will explore the circumstances surrounding both murders, which were initially ruled as accidents but later investigated due to suspicious circumstances and Karlsen’s suspicious behavior.