Mark Watts was 15 when he was shot and killed on January 4, 2012, in West Englewood on Chicago’s South Side. The shooting happened at about 8:11 p.m. while he stood on the porch of a residence in the 5700 block of South Laflin Street. An unidentified gunman approached and fired multiple times; Mark died shortly afterward.

His killing came during a year of sharply rising violence in Chicago, when the city recorded over 500 homicides and was described as the nation’s murder capital. West Englewood is one of the neighborhoods hardest hit by gun violence, and community members say fear of retaliation and distrust of police often keep potential witnesses from cooperating. Those dynamics have left many cases like Mark’s unsolved and families without closure.

If anyone remembers the night on South Laflin Street or has information that could help investigators, please come forward.