3 former New York prison guards charged in beating death of handcuffed inmate go on trial

A prosecutor told a jury Tuesday that three former upstate New York prison guards on trial in the fatal beating of a Black handcuffed inmate took part in an act of “sheer, unimaginable brutality.” Mathew Galliher, Nicholas Kieffer and David Kingsley are charged with murder and first-degree manslaughter in the death of Robert Brooks, whose beating by guards at the Marcy Correctional Facility on Dec. 9 was captured in part on body-camera footage. The trio were among 10 corrections officers indicted in February on murder charges or for lesser crimes.