A missing Ohio State University football player was found dead in a dumpster from a self-inflicted gunshot wound Sunday. Kosta Karageorge went missing Wednesday afternoon after he told his roommates he was going for a walk. (He didn’t show up for practice later that day.) Karageorge played one season on the football team and wrestled for three years. The Karageorge family said their son had a history of concussions, and suffered one as recently as a month ago. On Sunday night, 150 students gathered for a vigil.