Sterlin Corday Matthews, 19
, was found guilty in October of second-degree murder and other charges in the killing of Dequan Burks. On the night of Burks' death, Matthews was wearing a "Hellraiser" mask with pins protruding from it when his group of friends encountered a group of teens that had crossed into their neighborhood.
Baltimore County jurors spent less than an hour deliberating in the case, in which they heard how Matthews ran across Burks, 16, and his friends while trick-or-treating. A witness testified that she saw Matthews following her group and heard shots. Burks was later found dead in front of a rowhouse in Baltimore County. Police discovered bags of candy nearby.
Two other teens in his group were shot but survived, though prosecutors say one victim will carry a bullet inside his body for the rest of his life.