Shanann Watts' Parents Say Chris Was ‘Cold’ Weeks Leading Up to Her Death

The parents of Shanann Watts say her husband was cold and distant in the weeks leading up to the murders. Sandra and Frank Rzucek last saw their pregnant daughter when she spent six weeks visiting them in North Carolina. When she returned home, she was murdered by her husband, Chris Watts, who then killed their two daughters, 4-year-old Bella and 3-year-old Celeste. They told ABC’s “20/20” they believed Shanann was in a happy marriage, but something changed just before the killings.