"She stated she was holding the child and that's when she dropped the child", Newell said.
Colten Treu, 21, of Chippewa Falls is charged with four counts of homicide by intoxicated use of a vehicle while having a prior intoxicant-related conviction, four counts of hit-and-run resulting in death, one count of hit-and-run resulting in great bodily harm, one count of felony bail jumping and one count of intentional abuse of a hazardous substance.
Deputies say the 10-year-old confessed to her involvement in a November 2 interview.
The girls were collecting trash next to a rural highway over the weekend when a pick-up truck hit them.
The crash killed Jayna S. Kelley, 9; Autum A. Helgeson, 10; Haylee J. Hickle, 10; and Hickle's mother, Sara Jo Schneider, 32.
A 10-year-old girl has been taken into custody over the murder of a six-month-old baby.
The unnamed girl was at her foster parents' home in Tilden when she allegedly dropped the baby boy on October 30, Chippewa County District Attorney Wade Newell said in court Monday.
The fatal incident was similar to one in September, when Treu crashed his auto and police found methamphetamine and THC in it, Newell said in court.
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Treu's bond was set at $250,000.
Treu was speeding in his pickup when it veered off the road and into a shallow ditch where some of the fourth-graders and the mother were collecting litter as part of a larger Adopt-A-Highway group walking along both sides of the road, according to police and witnesses.
"We partner with Real Living, so any student in our district, no matter what the circumstance gets 4 free counseling sessions for themselves, as well as every single member of their family", said Eliopoulos.
Police said that they received a call from a caretaker saying that they had found the boy bleeding from the head and unresponsive. He said he saw people in the ditch wearing highly visible reflective vests.
Haylee also enjoyed painting and working on clay pottery with her mother. He says Treu does not yet have an attorney.
Another girl who was struck is still hospitalized but is now in stable condition.
Each homicide charge carries a maximum sentence of 40 years in prison.