Lindsay Clancy's ex-husband, Patrick, is expected to testify on the first day of her murder trial today over the tragic deaths of their three young children.

As a Massachusetts courtroom grapples with one of America's most heartbreaking family tragedies, the father at the center of the case has quietly built a new life hundreds of…

Lindsay Clancy’s mental wellbeing will be a central question during her trial for strangling her three children to death