Mario Venegas Jr., a 15-year-old Hispanic male, died after being struck in the head by a gunshot on August 5, 2016, in a home in the 2700 block of West Evergreen Avenue in Chicago’s Humboldt Park neighborhood. He was with two other people that afternoon: Orlando Gonzalez, 19, and a 17-year-old boy. The firearm discharged while the three were handling it. Mario was taken to Stroger Hospital and died the following day. The Cook County medical examiner ruled the death a homicide by gunshot wound.

Criminal charges followed. Orlando Gonzalez was charged with felony aggravated unlawful use of a weapon and causing child endangerment; he pleaded guilty and was sentenced to three years in prison. The 17-year-old was charged with involuntary manslaughter and unlawful possession of a firearm by someone under 18; his identity has not been disclosed because he is a juvenile.

Who in the community knew Mario or was aware of how these young people obtained access to that firearm?