Shannon Walton, 23, was killed on January 9, 2012, in Chicago, Illinois. His death came during a year when the city saw a sharp rise in homicides, exceeding 500 for 2012 and disproportionately affecting young people on the South and West Sides amid increasing gang violence and other criminal activity.

The case is presented as part of that wider surge in violence that prompted concern from community members and local leaders and spurred efforts to bring more resources to the neighborhoods hardest hit.

If anyone knew Shannon Walton or has information about the incident on January 9, 2012, please share what you know.