Watts was charged Monday with three counts of first-degree murder in the deaths of his wife and young daughters.
But he also faces two counts of first-degree murder of a victim under 12 in a position of trust and one count of felony unlawful termination of a pregnancy.
But despite the stunning assertion, Weld County District Attorney Michael Rourke made it clear he didn't believe Chris Watts: About 90 minutes before the document was made public, he charged the man with nine felony counts alleging that he was the one who killed his wife of almost six years, Shanann Watts, 34, and their two daughters, Bella, 4, and Celeste, 3.
Chris Watts said the couple's other daughter, Bella, 4, was already "sprawled out" on the bed and blue in the couple's bedroom, according to an arrest affidavit from Frederick police.
Under Colorado law, prosecutors must file charges against Watts by 3:30 p.m. MT Monday or let him go, according to KDVR.
Christopher Watts, who is being held without bail, is due back in court on Tuesday morning to be advised of the charges filed against him.
Watts confessed to killing his wife, loading the bodies into his truck and driving to an oil work site.More news: Australia boosts aid by AUS$1.8 billion for drought-hit farmers
Watts denied he was having an affair in police interviews but an investigation later uncovered he was in a relationship with a co-worker.
Shanann Watts, 34, and her two daughters ages 3 and 4 were reported missing.
Because if they are safe, they're coming back.
"It wasn't like her not to answer a phone call or text and when her friend Nicole showed up at the door, I was like "Something's up".
According to police, he told them that he had talked with his wife about his desire to separate from her.
There, he told officers that he buried Shanann Watts and dumped the girls' bodies into oil tanks, according to the affidavit.
Atkinson said she called him before the bodies were found - and he allegedly revealed to her that he and Shanann were thinking about separating.More news: Newcastle's Kenedy escapes a red card for blatant kick at Víctor Camarasa
Meanwhile, Chris Watts, 33, Shanann's husband and the father of Bella and Celeste, appeared on TV and pleaded for his family's return.
Atkinson said she contacted Chris Watts, but he didn't seem as anxious as she thought he should be.
Judge Marcelo Kopcow denied several motions from defense attorneys, including a request to require pathologists to swab the little girls' necks, throats and hands for DNA. Atkinson said she then contacted police. "I just want them home so bad".
Asked if he had argued with his wife before her disappearance, he cryptically replied, "We had an emotional conversation", and declined to elaborate further. Shanann was 15 weeks pregnant.
"Shanann, Bella, Celeste: If you're out there, just come back", he said.
But privately, she anxious her husband was cheating, friends said.
Chris and Shanann Watts faced financial problems in recent years and filed for bankruptcy in 2015.More news: Adrian Peterson to meet with Washington on Monday
"I walked in the house and - nothing", Chris Watts told KMGH. His children's bodies were found submerged in oil tanks, while his wife's body was recovered from a shallow grave nearby, according to court documents obtained by CBS News. "She wasn't here. The kids weren't here".