Why Lindsay Clancy's attorney is only now questioning whether she committed killings

CBS News legal contributor Jessica Levinson breaks down why Lindsay Clancy's attorney might have decided now to question whether she committed the killings of her three children during a hearing on the timing of a potential new trial.

CBS News legal contributor Jessica Levinson breaks down why Lindsay Clancy's attorney might have decided now to question whether she committed the killings of her three children during a hearing on the timing of a potential new trial.