A dispute between roommates in a Kansas City apartment on the evening of June 1, 2026, ended with the death of 42-year-old Arelio Antonio-Lazaro. Officers responding to a shooting near 12th Street and Askew Avenue at about 6:45 p.m. found Antonio-Lazaro with fatal gunshot wounds in the entryway; he was pronounced dead at the scene. His son was located in a bedroom with multiple gunshot wounds and was transported to a hospital in life-threatening condition.

Police took a 20-year-old roommate, Brayan Noe Arguijo-Mejia, into custody at the scene. Investigators recovered a 9mm handgun and 13 spent shell casings inside the apartment, and bullet holes were found in the wall of the apartment across the hall. Neighbors reported hearing an argument followed by multiple gunshots. Arguijo-Mejia was charged with second-degree murder, first-degree assault, and two counts of armed criminal action; bond was set at $250,000 cash-only.

Arguijo-Mejia told officers he thought he heard a gun being loaded and then retrieved his firearm, shooting both roommates. Some acquaintances described him as troubled and distressed in the period before the shooting. Does anyone have information about Arelio Antonio-Lazaro, his son, or what led to the confrontation that night?