Doctor testifies Clancy was criminally responsible for killings as closing arguments approach

Forensic psychologist Dr. Kirk Heilbrun took the stand in Lindsay Clancy's trial for the killings of her three children on Tuesday, testifying that he felt Clancy was criminally liable despite claims of postpartum psychosis. CBS News' Shanelle Kaul has the details.

Forensic psychologist Dr. Kirk Heilbrun took the stand in Lindsay Clancy's trial for the killings of her three children on Tuesday, testifying that he felt Clancy was criminally liable despite claims of postpartum psychosis. CBS News' Shanelle Kaul has the details.