Lindsay Clancy’s ex-husband testifies at her murder trial

Patrick Clancy testified on Monday during the murder trial of his ex-wife, Lindsay Clancy, who is accused of killing their three children. While the prosecution presents its case, the defense argues that postpartum psychosis drove Clancy to commit the crimes. Dr. Julia Riddle provided expert insight to CBS News regarding the nature of postpartum psychosis as it relates to the legal defense being presented in this high-profile trial to explain the defendant's mental state.