Jamie Sanchez-Negrete was 18 when he was killed in Chicago on June 12, 2010. His death came during a period of high homicide rates in the city, when gun violence and gang activity were driving many of the killings, and young people were disproportionately affected.

The case is presented as part of that broader wave of violence and underscores the heavy toll on families and communities from firearm-related homicides.

If anyone knew Jamie, witnessed the incident, or has information that could help, please share what you know with investigators.