Colorado woman suspected of killing 2 of her children is extradited from the UK

A Colorado woman accused of murdering two of her children during a contentious custody dispute has been extradited from the United Kingdom to face multiple criminal charges in the United States. Kimberlee Singler, 37, was returned to Colorado following a prolonged legal battle against her extradition from Britain.

The case dates back to December 2023 when police discovered the bodies of Singler’s 9-year-old daughter and 7-year-old son in their Colorado Springs residence. Her 11-year-old daughter survived the incident with injuries. Initially considered a victim herself due to superficial knife wounds, Singler claimed an unidentified intruder had attacked the family.

According to UK court documents, the surviving child eventually altered her account, telling investigators that her mother stated ‘God made her do it.’ This testimony prompted authorities to seek Singler’s arrest on December 26, 2023, but she had already fled to London’s affluent Chelsea neighborhood, where she was apprehended four days later.

Singler mounted a vigorous defense against extradition through her London attorney, Edward Fitzgerald, who previously represented WikiLeaks founder Julian Assange. Fitzgerald argued that Colorado’s mandatory life without parole sentence for first-degree murder convictions violated European human rights standards. Both Singler’s initial challenge in January 2025 and subsequent appeal in November were rejected by UK courts.

The investigation revealed substantial evidence contradicting Singler’s intruder narrative. Police found no footprints in fresh snow around the patio where she claimed entry occurred. GPS records placed her ex-husband approximately 80 miles away during the incident, undermining her allegations against him.

Court records indicate the tragedy unfolded amid an intense custody battle. Just one day before the children’s bodies were discovered, a Colorado judge had ordered Singler to comply with previous arrangements granting the father holiday custody. She was instructed to either transfer the children voluntarily or bring them to a December 20, 2023 court hearing for custody exchange.

Instead, on the scheduled hearing date, Singler filed a motion requesting postponement, citing the attack and her children’s deaths while asking for time to grieve and ‘gain my bearings after this incident.’

Singler now faces two counts of first-degree murder, one count of attempted murder, three counts of child abuse, and one count of assault. No U.S. attorney has yet been formally listed as representing her in court documents according to the clerk’s office.