Mark Donnelly was 32 when he was shot and killed on the night of May 18, 2013, on Prospect Street in Manchester, New Hampshire. The shooting followed an argument between Donnelly, his friends, and people in a car that had stopped nearby; a confrontation escalated and an unknown assailant shot Donnelly in the chest, and he died shortly afterward.

Donnelly was known locally as a talented street artist, a hardworking man and a devoted father. He had recently moved to Manchester to live with his fiancée and left behind two young daughters. No arrests have been announced and the case remains unsolved; authorities are offering a reward and continue to seek information.

If anyone has memories of that night or information about interactions on Prospect Street on May 18, 2013, please come forward.