A domestic disturbance in a Peoria neighborhood near 83rd Avenue and Happy Valley Road ended in a fatal shooting on the evening of September 14, 2025. The victim was 64-year-old Casey Orlowski. The sequence began with a 911 call from Orlowski saying his 25-year-old stepson, Zachary Parker, was armed and pointing a handgun at him and his wife. Orlowski’s wife escaped to a neighbor’s house and made a second 911 call while Orlowski barricaded himself in a bedroom.

Officers arriving at about 10 p.m. heard multiple gunshots from inside. The front security door was locked; Parker soon exited with his hands up and was taken into custody. Police found Orlowski inside with a fatal gunshot wound, reportedly from shots fired through the bedroom door. Parker was booked on several felony counts, including second-degree murder and aggravated assault, and told officers he did what he needed to do. He later claimed his stepfather had been the aggressor and that he acted in self-defense. Authorities described the shooting as an isolated domestic violence incident with no further threat to the community.

Does anyone in the area have information about the household, Parker’s access to firearms, or what led to the disturbance that night?