Frederick, Colorado (WTVD) -- A Colorado man has been arrested after allegedly confessing to killing his pregnant wife and two daughters. According to ABC affiliate KMGH, law enforcement officials said 33-year-old Christopher Watts confessed to killing 34-year-old Shanann Watts, who was 15 weeks pregnant, and their two daughters, 3-year-old Celeste and 4-year-old Bella, just hours after pleading for them to return home. Early Thursday morning, officials announced his arrest. He was booked into the Weld County Jail under three counts of first-degree murder and three counts of tampering with physical evidence. Police believe they know where bodies are and they're...