Santwon D. Mobley was 22 when he was shot and killed in Chicago on April 23, 2017. His death came during a single weekend that left seven people dead and at least 31 others wounded, one of several violent episodes that marked the city in 2017.

The killings that weekend were described as part of a surge in shootings across Chicago, highlighting persistent problems with gun violence in neighborhoods hardest hit by crime.

If anyone knew Santwon, witnessed the shooting, or has information that could help investigators, please come forward.