Khisem Hart was 28 when he was fatally assaulted in Philadelphia in early August 2009. The attack occurred on the evening of Thursday, August 6 in the 1800 block of West Cumberland Street; Hart suffered critical injuries and died the following day, Friday, August 7.

Police have not released details about what led to the assault, and no information about suspects or a motive has been made public. The case remains open and unsolved; no arrests have been announced. Anyone with information is asked to contact the Philadelphia Police Department’s Homicide Unit at 215-686-3334, and anonymous tips are accepted.

If anyone knew Khisem Hart or was in that neighborhood on August 6 and can help, please share what you remember with investigators.