Derik Johnson, 18, male, Black/African American, was shot and killed late on July 23, 2025, on Chicago’s Southwest Side in the West Lawn neighborhood. Police and reporters placed the attack in the 7200 block of South Avers Avenue, where Derik Johnson, 18, had been walking with friends when gunfire erupted, striking him fatally and wounding a 15-year-old boy.
Initial police statements described a chaotic scene and indicated that several teens fled in a rideshare after the shooting, while detectives began piecing together how the group’s movements that night led to the ambush.
Within days, authorities announced an arrest: a 17-year-old boy was charged with first-degree murder, attempted first-degree murder, and aggravated discharge of a firearm in the killing of Derik Johnson, 18, and the wounding of the 15-year-old. Prosecutors later said the teen had been on probation at the time. Because he is a juvenile, early court filings did not identify him by name, but the charges outlined that the shooting occurred during a late-night stretch tied to the West Lawn address where the teens had gathered. News accounts noted that he was ordered into juvenile detention as the case moved forward.
As the case advanced, additional details emerged from charging documents and courtroom hearings describing the lead-up to the killing of Derik Johnson, 18. According to those filings, the teens had been hanging out at the 17-year-old’s home, and two firearms—a. 22-caliber pistol and a 9mm handgun—were at the center of a dispute that escalated. After some in the group left the house, the shooter allegedly opened fire on Derik Johnson, 18, and his friend on the street; the surviving 15-year-old later told investigators he played dead to avoid being shot again and then helped identify the gunman. Reporters named the accused as 17-year-old Dariyun O’Neal and detailed the counts he faces, which mirror the allegations summarized by prosecutors.
Public records and memorial listings corroborate the date and place of death for Derik Johnson, 18, in Chicago on July 23, 2025, while local crime trackers and newsroom databases logged the case among that week’s homicides and recorded the swift announcement of juvenile charges. The portrait that emerges is of a summer night turned fatal, a group of friends, and a quarrel over guns that, according to authorities, ended with the killing of Derik Johnson, 18, and left a teenage witness wounded but alive to guide detectives to a suspect now facing murder and related charges.
