Richard Collins Iii

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Lt. Col. Joel Thomas, professor of Military Sciences, wipes tears from his face while memorializing Richard Collins III during a memorial vigil for Collins, who was killed Saturday at the University of Maryland in College Park, as they gather at Bowie State's auditorium in Bowie, Md., Monday, May 22, 2017. Authorities appealed for patience Monday from two college communities reacting in shock, fear and anger after a white University of Maryland student was arrested in what police called the unprovoked stabbing of a black Bowie State University student. Collins was commissioned into the Army from the college's ROTC program. (Kenneth K. Lam/The Baltimore Sun via AP)