Chilling details emerged Monday about the Colorado Watts family homicide where Chris Watts killed his pregnant wife and his two daughters on Aug. 13, 2018. According to reports Monday, Watts' 4-year-old daughter walked in on her father as he was strangling his wife.

A pre-recorded interview with attorney Steven Lambert, set to appear on Tuesday’s episode of Dr. Phil's show, revealed details about the horrific crime. Lambert, an attorney representing the wife’s family in a wrongful death suit, recounted the night. The woman's parents, Frank and Sandra Rzucek, will also appear on the show Tuesday.

“The night in question, Shanann came home,” Lambert told Dr. Phil McGraw. “She and Chris got into a fight. They had made up, they were getting along quite well.”

“Later on, they got into a fight again,” Lambert continued. “In that fight, he essentially confessed to having an affair, that he wanted a divorce, that it was pretty much over between them. She said something to the effect of, ‘Well, you’re not going to see the kids again.’ As a consequence of that conversation, he strangled her to death.”

“Bella walked in and asked, ‘What are you doing with mommy?'” Lambert said.

After killing his wife, Watts smothered his two daughters, Bella and Celesteir, and dumped the children’s bodies in an oil tank where they were found three days later.

Watts pleaded guilty and was sentenced to five life sentences in November 2018. He was not eligible for parole.

Despite committing such a heinous crime, the killer garnered female attention. Some of his admirers also sent him love letters in prison. In December, Inside Edition revealed excerpts from the letters, in which one woman named Candace wrote, “In my heart I know you are a great guy. If you do write me back I’d be the happiest girl alive that's for sure.”

Watts was labeled a “narcissist,” according to Candice DeLong, a former FBI criminal profiler and criminologist. DeLong said on Dr. Phil's show that Watts “is a malignant narcissist and psychopath.” In her opinion, “The hallmark is that they don’t feel remorse or empathy.”

Chris Watts
Chris Watts in court for his arraignment hearing at the Weld County Courthouse in Greeley, Colorado, Aug. 21, 2018. Getty Images/RJ Sangosti - Pool