A 74-year-old Chicago man wanted on charges of predatory criminal sexual assault of a child and aggravated kidnapping was taken into custody last Friday after what officials described as a coordinated fugitive operation. Authorities say the arrest clears outstanding warrants tied to multiple indicted cases.
The Cook County Sheriff's Office said in a post on X that its Fugitive Apprehension Unit, working with the U.S. Marshals Great Lakes Regional Fugitive Task Force, arrested John Zemblidge in the 6000 block of West Dakin Street last Friday (March 13). According to the sheriff's office, the warrants stem from three indicted criminal cases investigated by the Chicago Police Department. The agency identified Zemblidge as 74 years old and said he remains in Cook County Jail custody. The post also reminded the public that "defendants are presumed innocent until proven guilty in a court of law."
🚨FUGITIVE FOUND🚨 The Cook County Sheriff's Fugitive Apprehension Unit, in collaboration with the U.S. Marshals Great Lakes Regional Fugitive Task Force, arrested a 74-year-old man wanted on charges of predatory criminal sexual assault of a child and aggravated kidnapping. https://x.com/i/status/2035134816996168071
— Cook County Sheriff's Office (@CookSheriffIL) March 20, 2026
How Regional Fugitive Task Forces Operate
Regional fugitive task forces bring together federal marshals, state police, and local officers to track down fugitives who cross jurisdictional lines, according to the U.S. Marshals Service. These teams pool tips, records, and investigative leads from multiple departments to narrow searches into specific neighborhoods, a tactic used in recent multi-agency operations around Chicago. The marshals' press releases show that these task forces regularly partner with county and city units when fugitives are believed to be hiding locally.
Charges Carry Heavy Penalties
Predatory criminal sexual assault of a child is defined under Illinois law as sexual penetration or sexual contact with a child under 13 by someone 17 or older, and the state's court instructions outline how that offense is charged and proven, according to the Illinois Courts. Aggravated kidnapping is codified as an especially serious kidnapping offense and can be prosecuted as a Class X felony with lengthy prison ranges, the Illinois State Police notes. Both statutes carry enhanced penalties when victims are children or when other aggravating factors are present.
What Happens Next
Prosecutors will review the indicted cases and set court dates as the matter moves through the Cook County court system, the Cook County Sheriff's Office said. Zemblidge remains in county custody while the cases are routed through the courts, and formal filings and hearing dates are expected to appear in court records and State's Attorney filings in the coming days.
