Claudia and Chip fell in love in their golden years, surrounded by children and grandchildren. But in the early morning hours of April 14, 2013, their 17 years of marriage came to a brutal end: stabbed to death inside their Davis, California home. Police had no physical evidence, and spent months searching for leads, even within the family itself. But two months later, a tip led them to an unlikely and terrifying suspect – a fifteen-year-old boy. Join “48 Hours” correspondent Erin Moriarty for "Fifteen: Inside the Daniel Marsh Murders," a six-episode podcast that explores one of California's most chilling and notorious crimes.