The pregnant Colorado mother who was allegedly killed by her husband had reportedly confided to friends that her marriage was in tatters. Chris Watts, 33, allegedly admitted Wednesday to killing his wife, Shanann, 34, and daughters, Bella, 4, and Celeste, 3. Watts’ wife was 15 weeks pregnant at the time. Friends of Shanann said she feared her husband was being unfaithful. "It came to her mind that possibly he could be cheating," Amanda Thayer told CBS News.