Prosecutors' love triangle theory. Youth pastor accused of wife's murder. Plus, June Diane Raphael.

In San Diego County, jurors hear from the ex-wife of Maya Millete's lover as prosecutors wrap up their case against Maya's husband, Larry, who is accused of killing her. In Las Vegas, youth pastor David Vander Meer is charged with murdering his wife, Bernadette, on a hike in 2006. In Dateline Round Up, Alex Murdaugh and Luigi Mangione are back in court. Plus, "Legally Blonde" prequel star June Diane Raphael on her passion for true crime.