On April 12, 2023, at approximately 7:35 p.m., Lake County Sheriff’s Deputies were dispatched to a residence in the 40700 block of North Black Oak Avenue, Unincorporated Antioch, for a report of an unresponsive man on a driveway.  

Sheriff’s deputies arrived and Antioch Paramedics were already on-scene conducting life-saving measures.  The man, later identified as, William Martys, 59, of the same residence, was transported to Advocate Condell Medical Center in Libertyville, where he was subsequently pronounced deceased.  Further investigation revealed Martys sustained a gunshot wound to the head.  

On April 13, 2023, the Lake County Coroner’s Office conducted an autopsy.  The autopsy revealed Martys died from the gunshot wound to the head.  

Based on the preliminary information, the death is being investigated as a homicide.  The investigation remains ongoing by the Lake County Sheriff’s Office and Lake County Major Crime Task Force.