Breaking down postpartum psychosis amid the Lindsay Clancy trial

Hundreds of Lindsay Clancy supporters rallied outside the courthouse on Thursday, where she's on trial for murder in the killings of her three children. Shanelle Kaul reports on postpartum psychosis, the rare, but treatable illness Clancy's defense team argues made her not responsible for the crime.

Hundreds of Lindsay Clancy supporters rallied outside the courthouse on Thursday, where she's on trial for murder in the killings of her three children. Shanelle Kaul reports on postpartum psychosis, the rare, but treatable illness Clancy's defense team argues made her not responsible for the crime.