Joseph R Rivera was 21 when he was shot and killed on June 27, 2015, in Chicago, Illinois. His death occurred during a period marked by high levels of gun violence across the city, with many neighborhoods experiencing elevated homicide rates in the mid-2010s.

Rivera’s killing is described within the broader pattern of gang-related violence and socioeconomic challenges that contributed to public safety problems at the time.

What information might help shed light on the circumstances of Rivera’s death or those responsible for it?