CHICAGO (AP) — Three people accused in the beating death of the son of a former Chicago Fire Department chief have pleaded not guilty to the charges.

The three, 20-year-old Jonathon Owens, 33-year-old Stacy Krisik, both of Evergreen Park, and 26-year-old Jessica Doherty of Chicago on Thursday entered pleas to first-degree murder, aggravated kidnapping, kidnapping and unlawful restraint in Cook County Circuit Court.

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(Cook County Sheriff’s Office)

(Credit: Cook County Sheriff’s Office)

(Credit: Cook County Sheriff’s Office)

Prosecutors say on March 23, the three severely beat David Chikerotis in an apartment in the Chicago suburb of Evergreen Park. The 31-year-old Chikerotis was taken unresponsive to a hospital and died two days later.

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David Chikerotis worked as a set designer on “Chicago Fire.” His father, retired Chicago Fire Chief Steve Chikerotis, serves as a technical adviser on the show and occasionally appears as the Steve Walker character.

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