Yorkville Man Sentenced for Repeated Sexual Assaults

Chaske Roskopf receives 12 years in prison for assaulting girl over 4 years

Published on Feb. 26, 2026

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A 24-year-old Yorkville man, Chaske Roskopf, has been sentenced to 12 years in prison after being convicted of repeatedly sexually assaulting a girl starting when she was 9 years old and continuing until she was nearly 13 years old in Chicago's far southwest suburbs.

Why it matters

This case highlights the serious nature of child sexual abuse crimes and the need for strong sentences to protect vulnerable minors from predatory behavior, even when the perpetrator was also a minor at the time of the initial assaults.

The details

Prosecutors accused Roskopf of sexually assaulting the girl at his home in Yorkville over the course of nearly 4 years. Roskopf admitted to some of the assaults but claimed he was a minor himself when they occurred. He was convicted in October on two counts of aggravated criminal sexual assault and faced up to 30 years in prison for each count.

  • The assaults began in 2022 when the victim was 9 years old.
  • The assaults continued until the victim was nearly 13 years old.
  • Roskopf was convicted in October.
  • Roskopf was sentenced on February 19, 2026.

The players

Chaske Roskopf

A 24-year-old man from Yorkville, Illinois who was convicted of repeatedly sexually assaulting a young girl over the course of nearly 4 years.

Kendall County Prosecutors

The prosecutors who accused Roskopf of the sexual assaults and secured his conviction.

Judge Jody Gleason

The judge who sentenced Roskopf to 12 years in prison for the two counts of aggravated criminal sexual assault.

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The takeaway

This case underscores the importance of robust law enforcement and judicial action to address child sexual abuse, even in cases where the perpetrator was also a minor, in order to protect vulnerable youth and send a strong message that such predatory behavior will not be tolerated.