Previously, the court heard in September that Ms Singler’s alleged crimes were “committed against the backdrop of acrimonious court proceedings” relating to the custody of her children with her ex-husband Kevin Wentz.

Prosecutor Joel Smith said on 19 December 2023 the Colorado Springs Police Department responded to a 911 call reporting a burglary at a Colorado residence at 00:29 local time (06:29 GMT).

When officers arrived at the defendant’s address, they found two dead children and a “blood-stained handgun” which was discovered on the floor of the bedroom.

Mr Smith said DNA tests were carried out on the gun and a knife which revealed the presence of mixed profiles matching the children and Ms Singler.

A third child, who has not been named, was found with a serious injury to her neck. She was taken to hospital and survived.

Mr Smith said Ms Singler blamed her husband for the attack, but it was found he had been driving a “GPS-tracked truck” in Denver, giving what the prosecutor described as a “complete and verifiable alibi”.