Thirteen-year-old Marquise Martin, known as Bam, was shot and killed on December 9, 2017, in the Hornerstown section of Johnstown, Pennsylvania. He was walking home from Sheetz with friends when gunfire erupted; Marquise was found dead on a porch on Oak Street. The Cambria County coroner, Jeff Lees, ruled the cause of death a gunshot wound to the chest.

Police believe the killing may have been retaliation for the murder of 18-year-old Tavion Williamson six days earlier two blocks away. Investigators recovered a weapon at the scene and are trying to determine whether it links to Williamson’s death. Chief Robert Johnson said officers have a suspect in mind but no one has been arrested.

Marquise was remembered as a typical 13-year-old who liked snacks and hanging out with friends. A vigil was held on Oak Street and a GoFundMe was set up to help with funeral expenses. If anyone saw what happened that night or has information that could help the investigation, please come forward.