Prosecutors demand & # 039; killer dad & # 039; Chris Watts provides DNA, as he claims that the wife strangled his daughter

Christopher Watts is in court for his arraignment hearing at Weld County Courthouse on August 21, 2018 in Greeley, Colorado.

Colorado authorities want to take DNA samples from Christopher Watts while prosecutors continue to file a case against him for the murder of his pregnant wife and two young daughters.

The Weld County Prosecutor's Office wants the judge presiding over the case to force Watts to provide fingerprints, palm prints, handprints and other DNA-related evidence.

The request was made in a legal motion filed on Thursday, a copy of which was obtained by PEOPLE.

Watts was arrested and charged with first-degree murder for the death of his 34-year-old wife, Shanann Watts, and his two daughters, Celeste, three and Bella, four, at his home in Frederick, Colorado.

Christopher Watts is in court for his arraignment hearing at Weld County Courthouse on August 21, 2018 in Greeley, Colorado.

Christopher Watts is in court for his arraignment hearing at Weld County Courthouse on August 21, 2018 in Greeley, Colorado.

Watts was arrested and charged with first-degree murder for the death of his wife of 34 years, Shanann Watts, and his two daughters, Celeste, 3 and Bella, 4, at his home in Frederick, Colorado.

Watts was arrested and charged with first-degree murder for the death of his wife of 34 years, Shanann Watts, and his two daughters, Celeste, 3 and Bella, 4, at his home in Frederick, Colorado.

Watts was arrested and charged with first-degree murder for the death of his wife of 34 years, Shanann Watts, and his two daughters, Celeste, 3 and Bella, 4, at his home in Frederick, Colorado.

He is also accused of tampering with evidence of allegedly burying his wife in a shallow pit 35 miles from her home and throwing her two daughters in a tank full of crude oil.

If convicted, Watts faces the death penalty.

The authorities accuse Chris Watts or kill them after she returned from a business trip in the early hours of August 13.

A friend of Shanann who left her at home from the airport alerted the police after she did not respond to phone calls, according to the Coloradoan.

Watts told the police that he and his wife argued emotionally & # 39; about separating that morning.

He claims that his wife then strangled his two children to death.

The Weld County Prosecutor's Office wants the judge presiding over the case to force Watts to provide fingerprints, palm prints, handprints and other DNA-related evidence.

The Weld County Prosecutor's Office wants the judge presiding over the case to force Watts to provide fingerprints, palm prints, handprints and other DNA-related evidence.

The Weld County Prosecutor's Office wants the judge presiding over the case to force Watts to provide fingerprints, palm prints, handprints and other DNA-related evidence.

Watts says he then strangled Shanann in a fit of rage.

He told authorities that after telling his wife he wanted to separate, he saw how he strangled Celeste while Bella was "blue," her lifeless body in a nearby bed.

But the researchers say that Watts is lying. He was arrested on August 15, one day before the bodies of his wife and two children were found.

Watts is held without bail in the Weld County Jail. He still has to plead guilty.

& # 39; The theory that she [Shan’ann] Did not contain water? ", PEOPLE told a source close to the investigation.

"There is absolutely no evidence that he killed his children."

Meanwhile, Watts' lawyers are asking the court to investigate whether prosecutors have leaked harmful information about their client to the press.

Prosecutors have denied the accusation.

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