Eighteen-year-old Jamal Roseborough, known to family and friends as Chino, was killed in a double shooting on April 17, 2015, in the 2800 block of Garrison Avenue in Baltimore. Troy Palmer, 22, was also fatally shot in the same incident during a period when the city was experiencing a marked spike in violence.

The shooting added to a wave of homicides that year and proved difficult for investigators to solve, with authorities facing the common challenges of cases involving multiple victims and hesitant witnesses.

Anyone who knew Jamal Chino Roseborough, was in the area that night, or has information that could help investigators is asked to come forward.