Eric Jr. Knox, 24, was fatally shot on June 18, 2016, at a Chicago public housing complex. He was attending a party at a Chicago Housing Authority site when four security guards from Kates Detective & Security Services arrived and a confrontation followed. Knox was shot twice in the back during that incident; two of the security guards were also injured.

Knox’s mother, Ulisa Howell-Darby, later sued the security company and obtained a $4.8 million settlement after a guard was found responsible for his death. The case drew attention to the use of lethal force by private security in residential communities and occurred during an especially violent year for the city.

If anyone was at the party or witnessed the confrontation that night, please share what was seen or heard.