Murdered 10-year-old Lily Peters died from blunt force trauma and was strangled, her autopsy showed.

The girl’s remains were found in woodland near Chippewa Falls, northeast of Eau Claire, Wisconsin on April 25 after she went missing during a bike ride the day before. 

Preliminary autopsy results confirmed Lily died of strangulation and blunt force trauma, Chippewa County Coroner Ronald Patten said Thursday. 

He added the autopsy on Lily showed the manner of death was homicide and said he expected the results of toxicology tests, which will include DNA samples and more evidence on her alleged rape, within four to six weeks.

Lily’s cousin, Carson Peters-Berger, 14, was arrested on suspicion of murdering and raping the 10-year-old fourth-grader and was held on a $1million cash bond.

Peters-Berger is facing a possible life sentence after being charged with three counts over Lily’s death: first-degree intentional homicide, first-degree sexual assault and first-degree sexual assault of a child.

Lily Peters, 10, visited her aunt's home in Chippewa Falls, Wisconsin and her body was found in woodland close to a walking trail in the town on Monday morning

Lily Peters, 10, visited her aunt's home in Chippewa Falls, Wisconsin and her body was found in woodland close to a walking trail in the town on Monday morning

Lily Peters, 10, visited her aunt’s home in Chippewa Falls, Wisconsin and her body was found in woodland close to a walking trail in the town on Monday morning

Police arrested Carson Peters-Berger, 14, in connection with the murder of Lily Peters, 10

Police arrested Carson Peters-Berger, 14, in connection with the murder of Lily Peters, 10

Police arrested Carson Peters-Berger, 14, in connection with the murder of Lily Peters, 10

Fourth-grader went missing on Sunday night after being at an aunt's house

Fourth-grader went missing on Sunday night after being at an aunt's house

Her body was found along with her bike close to a walking trail in the small town

Her body was found along with her bike close to a walking trail in the small town

Fourth-grader had gone missing on Sunday night after being at an aunt’s house. Her body was found along with her bike close to a walking trail in the small town

In court, prosecutors said Peters-Berger planned to ‘rape and kill the victim from the get-go when he left the house with the victim to go down the trail’.

Chippewa County District Attorney Wade Newell said: ‘He punched the victim in the stomach, knocked her to the ground, essentially strangled her, hit her with a stick, before strangling her to the point of death – before he then sexually assaulted her.’

Peters-Berger is now incarcerated at the Northwest Regional Juvenile Detention Center in Eau Claire, Wisconsin, and is due to appear again in court next week. 

Lily’s father, Alex Peters, 43, reported his daughter missing at 9pm on Sunday when she failed to return home from visiting her aunt.

Lily, who lived less than half a mile from her aunt’s home, was discovered lying a little way off a bike trail on Monday morning.

Locals in Chippewa Falls said she was often seen cycling down the path on her bike which was found close to her body.

The spot where she was discovered is close to the Jacob Leinenkugel Brewing Company, which sits on the bank of Star Lake. The location is within view of a row of houses on the other side of the 23-acre lake.

Murdered 10-year-old Lily Peters died after she was strangled and suffered blunt force trauma, her autopsy showed

Murdered 10-year-old Lily Peters died after she was strangled and suffered blunt force trauma, her autopsy showed

Murdered 10-year-old Lily Peters died after she was strangled and suffered blunt force trauma, her autopsy showed 

Preliminary autopsy results confirmed Lily died of strangulation and blunt force trauma, Chippewa County Coroner Ronald Patten said Thursday

Preliminary autopsy results confirmed Lily died of strangulation and blunt force trauma, Chippewa County Coroner Ronald Patten said Thursday

Preliminary autopsy results confirmed Lily died of strangulation and blunt force trauma, Chippewa County Coroner Ronald Patten said Thursday 

Police tape at the entrance to the wooded area where her body was discovered on Monday morning

Police tape at the entrance to the wooded area where her body was discovered on Monday morning

Police tape at the entrance to the wooded area where her body was discovered on Monday morning

It came as DailyMail.com revealed 14-year-old Peters-Berger is the son of a convicted pedophile. 

Adam Berger, 37, spent three years in jail after being caught with a stash of pornographic images of prepubescent girls on his phone.

According to charging documents for Adam Berger, 10 pornographic photos showing very young girls in spread-legged positions were found on his phone. Some of them had been doctored to include comments such as ‘first in ur little girls a**hole and then in ur mouth mom.’

Berger’s own face was superimposed on some of them. 

Other pictures showed the children semi-dressed – among them one showing a girl in a green feather boa and black high heels and another girl wearing a pink tutu skirt.

All of the revolting pictures focused on the children’s genitalia according to court papers.

He also had drug paraphernalia including four crack pipes in his home. 

Adam Berger's son Carson Peters-Berger, 14, is now facing a possible life sentence after being charged with three counts over Lily's death. The father and son are pictured together

Adam Berger's son Carson Peters-Berger, 14, is now facing a possible life sentence after being charged with three counts over Lily's death. The father and son are pictured together

Adam Berger’s son Carson Peters-Berger, 14, is now facing a possible life sentence after being charged with three counts over Lily’s death. The father and son are pictured together 

DailyMail.com can reveal that Adam Berger is currently living in a halfway house in Eau Claire after being released from Oshkosh Correctional Institution in April 2021.

Adam Berger, 37, spent three years in jail after being caught with a stash of pornographic images of prepubescent girls and four crack pipes. Berger is seen in his mugshot

He remains on supervised probation and is on the sex offender registry. He and his lawyers had opposed extended probation because he would not have had unsupervised visits with his son – who he described in a letter as being ‘the best of me’.

Other letters filed in support of his bid to regain unsupervised contact with his son describe an unhappy child who never smiled and looked miserable in the company of his mother Lauri Davis, 45.

When Berger was sent to jail in May 2018, Peters-Berger’s life was shattered according to his grandmother Mary and family friend Katie Weathers.

His grandmother said: ‘Carson has not been very happy with his father being gone.’

Weathers accused Davis of being a bad mother, saying: ‘We have seen him out and about with his mom and he never looks happy.

‘He doesn’t smile, he’s always quiet and just looks at the ground and doesn’t talk.’

She also accused Davis of trying to limit his contact with Berger’s friends and family.

The 14-year-old is the product of a brief relationship between Berger and Davis, who is the sister of Lily’s father Alex Peters.

Adam Berger wrote a letter from prison to a judge begging to be allowed unsupervised visits with his son, who he described as 'the best part of me'

Adam Berger wrote a letter from prison to a judge begging to be allowed unsupervised visits with his son, who he described as 'the best part of me'

Adam Berger wrote a letter from prison to a judge begging to be allowed unsupervised visits with his son, who he described as ‘the best part of me’

Berger was charged with a total of ten counts of child pornography

Berger was charged with a total of ten counts of child pornography

Berger was charged with a total of ten counts of child pornography

According to charging documents, pictures showed the children semi-dressed – among them one showing a girl in a green feather boa and black high heels and another girl wearing a pink tutu skirt

According to charging documents, pictures showed the children semi-dressed – among them one showing a girl in a green feather boa and black high heels and another girl wearing a pink tutu skirt

According to charging documents, pictures showed the children semi-dressed – among them one showing a girl in a green feather boa and black high heels and another girl wearing a pink tutu skirt

Davis, who is now in a relationship with convicted fraudster John Repetto, 50, lives in the Chippewa Falls home where Lily was last seen with Peters-Berger.

According to charging documents, 10 pornographic photos showing very young girls in spread-legged positions were found on Berger's phone

According to charging documents, 10 pornographic photos showing very young girls in spread-legged positions were found on Berger's phone

According to charging documents, 10 pornographic photos showing very young girls in spread-legged positions were found on Berger’s phone

The white clapperboard property was sealed off with crime scene tape when DailyMail.com visited on Wednesday and was protected by two police vehicles.

Davis and Berger split when their son was two and appeared to have had an acrimonious relationship, with Davis suing for child support in 2010.

In 2017, before Berger was convicted of child porn offenses but after he had been arrested and charged, Davis called the police over an incident where he drove his car at her.

Although not allowed solo contact with his son, who was then aged eight, the charging papers say they were in the vehicle together.

Davis said she first noticed a suspicious car lurking in the alleyway behind her home and followed the vehicle before it pulled over into a random driveway.

After Peters-Berger got out, Berger then reversed into Davis who then attempted to stop him leaving.

She said he then drove the car at her, leaving her injured when she rolled off the hood and ended up on the ground.

When Berger was sent to jail, all physical contact ceased but in a jailhouse letter, Berger said he emailed with his son daily, spoke to him regularly while he was with his grandmother and mailed him a crochet blanket he had made in prison.

When Berger was sent to jail, all physical contact ceased. In a jailhouse letter, Berger said he emailed with his son daily, spoke to him regularly while he was with his grandmother and mailed him a crochet blanket he had made in prison

When Berger was sent to jail, all physical contact ceased. In a jailhouse letter, Berger said he emailed with his son daily, spoke to him regularly while he was with his grandmother and mailed him a crochet blanket he had made in prison

When Berger was sent to jail, all physical contact ceased. In a jailhouse letter, Berger said he emailed with his son daily, spoke to him regularly while he was with his grandmother and mailed him a crochet blanket he had made in prison

When Berger was sent to jail, all physical contact ceased. In a jailhouse letter, Berger said he emailed with his son daily, spoke to him regularly while he was with his grandmother and mailed him a crochet blanket he had made in prison

When Berger was sent to jail, all physical contact ceased. In a jailhouse letter, Berger said he emailed with his son daily, spoke to him regularly while he was with his grandmother and mailed him a crochet blanket he had made in prison

The child's body was found on a hiking trail less than a mile from her aunt's house, near where her bike was discovered

The child's body was found on a hiking trail less than a mile from her aunt's house, near where her bike was discovered

The child’s body was found on a hiking trail less than a mile from her aunt’s house, near where her bike was discovered 

The house where Lily's aunt lives has been taped off and is currently guarded by police. Toys can be seen in the yard

The house where Lily's aunt lives has been taped off and is currently guarded by police. Toys can be seen in the yard

The house where Lily’s aunt lives has been taped off and is currently guarded by police. Toys can be seen in the yard

Police arrested Carson Peters-Berger, 14, in connection with the murder of Lily Peters, 10

Police arrested Carson Peters-Berger, 14, in connection with the murder of Lily Peters, 10

Police arrested Carson Peters-Berger, 14, in connection with the murder of Lily Peters, 10

Police arrested Carson Peters-Berger, 14, in connection with the murder of Lily Peters, 10

When Berger was sent to jail in May 2018, Peters-Berger’s life was shattered according to his grandmother Mary and family friend Katie Weathers. His grandmother said: ‘Carson has not been very happy with his father being gone’ 

The white clapperboard property was sealed off with crime scene tape when DailyMail.com visited on Wednesday and was protected by two police vehicles

The white clapperboard property was sealed off with crime scene tape when DailyMail.com visited on Wednesday and was protected by two police vehicles

The white clapperboard property was sealed off with crime scene tape when DailyMail.com visited on Wednesday and was protected by two police vehicles

'Justice for Lily' signs were seen in the neighborhood near her home. Like her cousin, 10-year-old Lily was the product of a broken home. She lived with her father Alex who has a string of convictions for drug and alcohol offenses including several DUIs

'Justice for Lily' signs were seen in the neighborhood near her home. Like her cousin, 10-year-old Lily was the product of a broken home. She lived with her father Alex who has a string of convictions for drug and alcohol offenses including several DUIs

‘Justice for Lily’ signs were seen in the neighborhood near her home. Like her cousin, 10-year-old Lily was the product of a broken home. She lived with her father Alex who has a string of convictions for drug and alcohol offenses including several DUIs

He said he dreamed of a future with his son, adding that he wanted unsupervised contact with his son because ‘he is not a victim of my offense’. He added: ‘My son is the best part of me.’

The motion was denied and it is unclear whether Berger has seen his son since his release on extended supervision in April last year.

Lily's mother Jennifer Eyerly, 38, is currently on probation after being convicted of multiple counts of theft including for swiping four of her mother's credit cards and racking up a bill totaling $7,788.31

Lily's mother Jennifer Eyerly, 38, is currently on probation after being convicted of multiple counts of theft including for swiping four of her mother's credit cards and racking up a bill totaling $7,788.31

Lily’s mother Jennifer Eyerly, 38, is currently on probation after being convicted of multiple counts of theft including for swiping four of her mother’s credit cards and racking up a bill totaling $7,788.31

Like her cousin, 10-year-old Lily was the product of a broken home and lived with her father Alex who has a string of convictions for drug and alcohol offenses including several DUIs.

Davis also has multiple convictions for drug offenses, all dating from at least two years before her son was born, and was also arrested for domestic battery in December 2005 following an altercation with her then-husband John Davis.

Meanwhile, Lily’s mother Jennifer Eyerly, 38, is currently on probation after being convicted of multiple counts of theft including for swiping four of her mother’s credit cards and racking up a bill totaling $7,788.31.

She also cheated her aunt and uncle out of $10,000 by inventing fake jobs for them – even conducting false interviews – in a bid to get hold of their banking details.

Eyerly, who remains on probation, split from Peters in 2018 and, in January, moved more than 60 miles away to the tiny village of Balsam Lake.

Lily Peters murder timeline 

Sunday April 24

Lily Peters, 10, leaves her aunt’s house on a bike to cycle in woods near Chippewa Falls, northeast of Eau Claire, Wisconsin.

Lily’s father becomes worried when she doesn’t return at 9pm and reports her as missing.

Police searching for the ten-year-old find her bike in woodland near a walking trail between the end of N Grove Street and the Leinenkugel’s brewery parking lot, four block’s from her aunt’s house.

Police use dog units and drones as the search for Lily continues.

Monday April 25

Police find Lily’s remains in woodland near Chippewa Falls, northeast of Eau Claire. 

Lily Peters, 10, (pictured) was allegedly strangled to death and sexually assaulted by her 14-year-old cousin

Lily Peters, 10, (pictured) was allegedly strangled to death and sexually assaulted by her 14-year-old cousin

Tuesday April 26

An anonymous Reddit user posts: ‘What’s scary is I was playing Pokemon Go in the park that day walking along that very same trail, my stomach turns when I think I saw that girl in a pink/purple hoodie on her bike with another kid on my way out. I have a suspicion that it could be another kid that did it.’

Police announce they have arrested a suspect for Lily’s murder.

Wednesday April 27

Police say the suspect is the 14-year-old eighth-grader cousin of Lily.

He appeared in adult court named only by his initials of CP-B and is charged with first-degree intentional homicide, first-degree sexual assault and first-degree sexual assault of a child under age 13, resulting in great bodily harm. Bond is set at $1million.

Thursday April 28 

Carson Peters-Berger, 14, is revealed as Lily’s cousin accused of her murder and sexual assault.

DailyMail.com reveals 14-year-old Peters-Berger is the son of convicted pedophile Adam Berger, 37, who spent three years in jail after being caught with a stash of pornographic images of prepubescent girls on his phone.

Lily’s autopsy shows she died of strangulation and blunt force trauma, Chippewa County Coroner Ronald Patten says.

He adds the autopsy showed the manner of death was homicide and says he expects the results of toxicology tests within four to six weeks.

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