Joseph Addison, 22, was killed in a brazen daylight-style attack in Point Breeze, South Philadelphia, in the early morning hours of a Thursday in June 2010. He was struck when two people opened fire with a semiautomatic rifle on the 1200 block of South 21st Street, and died in the street.

The shooting added Addison’s name to Philadelphia’s 2010 homicide totals. Motive has not been established in reports, and no suspects or arrests are publicly identified; the case remains counted among unsolved homicides. The violence stunned neighbors and left a family and community without answers.

If anyone knew Joseph, saw activity around South 21st Street that morning, or has information about the attack, please come forward to the authorities handling the case.