Lindsay Clancy murder trial: Prosecutors' 'mortal sin' question receives gasps

Prosecutors question Susan Clancy, the former mother-in-law of Lindsay Clancy, in the Massachusetts murder trial. Clancy testified that the mother of three was begging for help before the tragedy.

Heartbreaking courtroom testimony highlights the ongoing murder trial of a Massachusetts mother accused of killing her three children. Susan Clancy testifies her former daughter-in-law begged for medical help prior to the tragedy, while the defense presents psychological evidence of postpartum psychosis.