New details have emerged in the case of a 10-year-old Wisconsin girl accused of stomping a baby to death inside a Wisconsin daycare last month. Court documents, unsealed by a Dunn County judge who took over the case, provide grim specifics of the infant boy’s last hours of life.

Chippewa County Judge James Isaacson was initially assigned to the case, but according to NBC13, Dunn County Judge James Peterson was assigned to take over on December 14 after Isaacson recused himself. While Isaacson immediately sealed the case records when the Department of Justice filed a criminal complaint against the girl on December 4, Peterson reversed the decision and ordered the complaint to be unsealed, the Leader-Telegram reports.

As CrimeOnline previously reported, the incident in question occurred at a Tilden licensed daycare at 12096 102nd Ave. The girl, who’s currently being charged as an adult for first-degree intentional homicide, is accused of stomping on the head of 10-month-old boy, Jaxon Liedl, killing him.

When authorities arrived to the daycare, they rushed the baby to St. Joseph’s Hospital. His condition was so severe that he was flown to St. Paul Hospital, where he was pronounced dead.

A physician at the hospital later contacted authorities and explained that the infant’s injuries didn’t appear to be accidental. The physician also said “force required (to cause the injuries) could be generated by a 10-year-old girl,” and “the manner of death was homicidal action.”

“Later that afternoon the sheriff’s department received a call from medical personnel, a doctor, attending this youth and indicated that his belief was that the injuries sustained by the six-month boy was not an accident,” Chippewa County Sheriff Jim Kowalczyk said.

According to the recently-unsealed complaint, the infant had “bilateral skull fractures and bilateral subdural hematoma.”

“A tread pattern on (the girl’s) shoes appeared to match the patterned bruising on the head of the victim,” the complaint also read.

The little girl admitted that she dropped Jaxon, and according to the complaint, she claimed when the baby hit his head on a stool, she started stomping on his head with her feet. She reportedly said she then put him back in his crib and went outside to play with the other children. She said she urged the other kids to go inside to play and shortly after, the injured baby was discovered.

Authorities interviewed daycare provider Amber Sweeney, who said she put the baby down for a nap at around 3 p.m. that afternoon. She said the 10-year-old and two 6-year-olds who attend the daycare, arrived from school and played outside while the infant slept.

Sweeney admitted that the children, which also included two 2-year-olds, were in and out of the house for “short periods” while the baby slept. She also said she spotted the 10-year-old sitting by herself close to a bay window in the kitchen on the day in question.

Jaxon’s father, Nate Liedl, showed up at the girl’s court hearing last month to ensure she “saw his face” and understood the depth of the pain created when the baby passed away.

“As opposed to seeing it as a 10-year-old girl, I saw it as the person who killed my son. And she, in my opinion, deserved to be in shackles or handcuffs. She’s a criminal,” Leidl, who fought for custody of Jaxon for the three months of the baby’s life, told ABC7. “I waited 37 years for my own little baby boy. I was extremely lucky because he didn’t cry, no fussing, he was happy smiles all the time,”

Liedl said after he heard his son was injured, he initially thought the baby would be OK, but then he got the news that Jaxon had taken a turn for the worst.

“They had mentioned what are we going to do if his heart stops, and it caught me completely off guard. I had sent a couple messages out to family to let them know that Jaxon’s not going to make it. I remember, I broke down out there pretty bad. Yeah, it really hit hard.”

Liedl also explained that he didn’t blame the daycare for the incident. The suspect, a foster child, reportedly lived with the family that operated the daycare.