Christopher Watts sits in court for his sentencing hearing at the Weld County Courthouse on Monday, Nov. 19, 2018, in Greeley, Colo. Watts received three consecutive life sentences without a chance at parole on Monday, nearly two weeks after pleading guilty to avoid the death penalty. (RJ Sangosti/The Denver Post via AP, Pool)

Chris Watts has provided to law enforcement additional details about the murders of his pregnant wife, Shanann, 34, and two daughters, Bella, 4, and Celeste, 3, according to an announcement Thursday by the Colorado Bureau of Investigation.

On Feb. 18, an interview took place between Watts and investigators with CBI, FBI, and the Frederick Police Department. Thursday’s release does not say where the interview took place, nor does it provide specific details about the interview.

The Colorado Bureau of Investigation possesses documentation, including a written report and audio file from its interview with Watts. The information will be released to the public March 7.

Watts pleaded guilty November 6 to three counts of first-degree murder after deliberation, two counts of first-degree murder of a child under the age of 12 and by a person in a position of trust, three counts of tampering with a deceased human body and one count of unlawful termination of a pregnancy.

Although he pleaded guilty, Watts never provided a true account about how or why he carried out the murders. He told Frederick police and CBI investigators in August he killed Shanann in a rage after she strangled their daughters, but the evidence hasn’t supported those claims. Sources close to the investigation say Watts has finally provided an accurate account of how the killings occurred.

Shanann, right, Bella, top, and Celeste, bottom.

Watts was sentenced Nov. 19 by Weld District Court Judge Marcelo Kopcow to five life terms in prison. Three of those life terms were set to run consecutively, representing one for each of the victims. The two other life terms were ordered to run concurrent. Watts also received a 48-year concurrent sentence on the unlawful termination of a pregnancy charge, which represented Watts and Shanann’s unborn son, Nico, as well as a total of 36 years for the three counts of tampering with a deceased human body.

Shanann, Bella and Celeste were first reported missing on Aug. 13 by family friend Nicole Utoft, who also was the last person to see Shanann alive. Utoft and Shanann worked for the same company, Le-Vel, and had traveled to Arizona together on a business trip. Utoft dropped Shanann off at her Frederick home after 1 a.m. Aug. 13. She reported her missing when Shanann failed to respond to repeated text messages and didn’t show for a doctors appointment later that day.

The bodies of Shanann, Bella and Celeste were recovered three days later at an Anadarko tank battery site near Hudson. Watts buried Shanann in a shallow grave and dumped his two daughters in separate oil tanks.

– Joe Moylan covers crime and public safety for The Greeley Tribune. Reach him at jmoylan@greeleytribune.com, (970) 392-4467 or on Twitter @JoeMoylan.