In a calm voice,Chris Wattsslowly described for investigators what happened the night of August 13, 2018, when he strangled his pregnant wife and then smothered his two daughters using the youngest one’s blanket. Colorado Bureau of Investigation officials interviewed Watts, 33, in a Wisconsin prison, questioning him on the killings of his 34-year-old wife Shanann and the couple’s daughters, Bella, 4, and Celeste, 3. During his confession, Watts describes how he and Shanann had sexafter she returned from a business tripto Arizona....

The murdersof Bella and Celeste Watts and their mother, Shanann Watts, were not quick and they were far from painless, Colorado prosecutors revealed Monday at the sentencing for their killer, family patriarchChris Watts. Addressing the court at Chris’ Monday morning sentencing hearing for the murders, Weld County District Attorney Michael Rourke said the killings were violent beyond explanation. “There are no words to adequately describe the unimaginable tragedy that brings us before this court today,” he told the judge....

A lawyer for Shanann Watts’ family is speaking out — and sharing chilling details of the murder of the pregnant Colorado mom and daughters Bella, 4, and 3-year-old Celeste. “The night in question, Shanann came home,” Lambert tells 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, who isrepresenting Shanann’s family in a wrongful death suitagainst Watts, continues....

Chris Watts. The defense foraccused triple-murderer Chris Wattsmight base their strategy on the suspect’s claim that his slain wife — and not Watts himself — killed their two young daughters, a legal expert tells PEOPLE. “The jury’s going to make a determination whether to believe him or not,” says Ambrosio Rodriguez, a former prosecutor who is now a criminal defense lawyer and is not connected to the case. “If a jury believes him, he’s going to walk....

At first, it was the exact opposite of what they wanted: On Aug. 14Chris Wattswent on the local newsto talk about his wife, Shanann Watts, and their two young daughters — all of whomhad vanished the day before from the family’s homein Frederick, Colorado. Shanann’s mother,Sandra Rzucek, warned him against just such a public appearance. In hindsight, however, she’s glad he didn’t take her advice. “I said, ‘Chris, I don’t think you should do any media,’ ” Rzucek recalled in an interview with ABC News airing Friday night on20/20....

The mistress of admitted triple-murderChris Wattssaid she was tricked into believing he was a loving father finalizing a divorce — and had no idea his wife was 15-weeks pregnant until she and their two daughters went missing in August. “He’s a liar,” Nichol Kessinger, 30, toldThe Denver Postin an interview published Thursday about the man she met through work. “He lied about everything.” It’s the first time Kessinger spoke out about her relationship with Watts, who pleaded guilty earlier this month tothe August murdersof his wife of nearly six years, 34-year-oldShan’ann Watts, and their daughters, Bella, 4, and Celeste, 3....

As police focused on killerChris Wattsafter his pregnant wife and two young daughters disappeared and were found murdered in August, the woman with whom he washaving an affairwondered if she’d be publicly shamed, conducting internet searches about the mistress of another infamous killer. “Did people hateAmber Frey?” Watts’ mistress,Nichol Kessinger, typed into an Internet search, invoking the name of the woman who was having an affair with infamous killerScott Peterson, whomurdered his wife, Laci, and their unborn childin 2002....

Nichol Kessinger.Photo: RJ Sangosti/The Denver Post/Getty The mistress of admitted triple-murdererChris Wattssaid she told police about the affair after he behaved suspiciously when his wife and two daughters went missing and his lies to her were exposed. Nichol Kessinger, 30, spoke out for the first time in aninterview withThe Denver Postpublished Thursday. Kessinger, who met Watts through work, was the woman whose name was redacted from an affidavit for Watts’ arrest which said he was having an affair, a law enforcement source confirms to PEOPLE....

The mother ofChris Wattsis worried about how her triple-murderer son will fare in prison, she said in a recent interview. “There’s no telling what would be done to him in prison. I just want him to fight,” Watts’ mother added. Chris Watts, 33,pleaded guiltyearlier this monthto the August murdersof his wife of nearly six years, 34-year-old Shan’ann Watts, and their daughters, Bella, 4, and Celeste, 3. Shan’ann was about 15 weeks pregnant with a son at the time, andher family later said she planned to name him Niko Lee....

The parents ofChris Wattsare speaking out, claiming their son is not a “monster” despitepleading guiltyto murdering his wife and two young daughters. In an interview with local station KMGH,Ronnie and Cindy Wattssaid their son was once easygoing and “normal.” “He was in sports from when he was 5 until 17 years old,” Cindy told the station. “He was normal, he didn’t have a temper, he was just easygoing like his dad....

Before Watts received a life sentence without the possibility of parole, his parents’ attorney read a letter from them stating, “We are not here to ask for leniency and are not in any way condoning or tolerating the crime that has occurred or the pain that has been caused.” Wattspleaded guiltyon Nov. 6 to first-degree murder in theAugust killingsof his pregnant wifeShanann Watts, 34, and their daughters, Bella, 4, and Celeste, 3....

PEOPLE can exclusively unveil five first look photos fromChris Watts: Confessions of a Killer, which is based on real-life events and taped confessions. The movie will premiere on Lifetime on Jan. 25. The film stars Sean Kleier (Odd Mom Out) as Chris,Ashley Williams(How I Met Your Mother), as Shanann and Brooke Smith (Bates Motel, Ray Donovan) as FBI agent Tammy Lee. Sony Pictures Television is producing the film for Lifetime....

Photo: Chris “Swaggy C” Williams/Instagram A young couple who met while filmingBig Brothergot good and bad news in quick succession this week. “At the end of this process … I was like, I want to spend my life with this boy. There’s no question about it,” Dayton, 25, said into the camera. Williams continued, “Regardless, people keep saying that I proposed because she was pregnant, but that’s not the case at all … Going through that process and creating a child but also losing a child with her made me realize that this is my girl, and I’m going to marry her....