John Park, an 18-year-old from Chicago, died on September 24, 2022 after being shot inside the family home in the North Park neighborhood. Zack reportedly was pacing and knocking on furniture, refused John’s request to stop, and then fired two close-range shots that struck John in the chest. John was pronounced dead shortly after transport to a local hospital.

Zack Park was arrested and charged with first-degree murder. He was not present at the initial bond hearing because he was receiving treatment for schizophrenia at Ascension Saint Mary. Investigators reported that Zack’s right hand tested positive for gunshot residue and that he admitted disposing of the firearm used in the shooting. A Cook County judge set a d-bond at $1 million with $100,000 required for release. The next court date was scheduled for October 14, 2022.

The family and neighborhood were described as shocked by the killing. What anyone who knew John or the family can add to the timeline or circumstances?