- - Colorado mom accused of killing 2 children extradited to US from UK

Thao Nguyen, USA TODAY December 26, 2025 at 12:53 AM

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A Colorado woman accused of killing two of her children during a custody dispute with her ex-partner has been extradited to the U.S. about two years after was arrested in U.K., authorities said.

Kimberlee Singler, 37, was returned to the U.S. on Dec. 23 and is currently being held in custody in Colorado, according to Colorado's 4th Judicial District Attorney's Office. Singler faces seven counts, including the first-degree murders of her 9-year-old daughter and 7-year-old son in December 2023.

"Singler is accused of committing an unspeakable act — really, a reprehensible act," Colorado Springs Police Chief Adrian Vazquez said at a news conference on Dec. 23. "Crimes as horrific as this are simply heart wrenching... I know that these acts have deeply impacted our community and our hearts remain with the victims."

See timeline of case: Melodee Buzzard's mother charged with murder.

Kimberlee Singler faces seven criminal counts relating to the double homicide of two of her children.

Singler was arrested in late December 2023 in London just over a week after two of her young children were discovered dead at their home in Colorado Springs, authorities said. Her 11-year-old daughter sustained a "significant injury" but was taken to a hospital and survived, according to prosecutors.

During the news conference, District Attorney Michael Allen said Singler will be held without bond pending a preliminary hearing. Online inmate records showed that a hearing was scheduled for Jan. 7, 2026.

What is Kimberlee Singler accused of doing?

On Dec. 19, 2023, police responded to a burglary call at Singler's home, according to the Colorado Springs Police Department. When officers arrived at the scene, they discovered Singler and her 11-year-old daughter injured and her 9-year-old daughter and 7-year-old son dead.

Singler and her 11-year-old daughter was transported to the hospital for treatment. At the time, police said Singler was considered a witness and a victim and allowed her to leave the hospital as there was not enough probable cause to suggest she was linked to the children's deaths.

But "as the investigation into this case unfolded, it was determined the initial report of a burglary was unfounded," according to police. After Singler appeared to be cooperating with police, she disappeared during the investigation, police said.

Prosecutors have alleged that Singler killed her two children by shooting them in the head and stabbing them in the neck in their home. She is also accused of attempting to kill her 11-year-old daughter but has denied the allegations.

At the time of the murders, prosecutors said Singler was in the midst of a protracted custody battle with her ex-partner.

UK judge rejected Colorado mother's challenge against extradition

Earlier this year, a judge in the U.K. rejected Singler's challenge to extradition, USA TODAY previously reported. Singler had denied the charges in a London court and her lawyer told the court Singler was "concerned that the statement made against her by her surviving child was not voluntary."

The judge ruled that Singler's challenge to her extradition, on the grounds that if convicted she faces a mandatory sentence of life without parole in breach of her human rights, should be dismissed.

According to Allen, his office has a filed a criminal complaint against Singler with the following felony charges:

Two counts of first-degree murder after deliberation and with intent

Two counts of first-degree murder of a child under 12

One count of attempted first-degree murder after deliberation and with intent

One count of attempted first-degree murder of a child under 12

One count of first-degree assault

Allen said if Singler is convicted of the Class 1 felony charges, she faces a sentence of life in prison without parole.

Contributing: Anthony Robledo and Julia Gomez, USA TODAY; Reuters

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