The U.S. Department of Justice (DOJ) has closed a second investigation into the killing of Emmett Till, saying it could not prove that a key player in what happened lied. Till, then 14, was said to have grabbed and whistled at a woman, Carolyn Bryant Donham, the co-owner of a store in Money, Mississippi. Enraged by the teenager’s actions, Donham’s husband Roy Bryant, his half-brother, and at least one other person took Till from his relatives’ home a few days later. Till was found three days after that dead. The black boy’s body had been brutally beaten. Bryant and his relative were charged with murder but an all-white jury acquitted them. The pair admitted to killing Till in an interview with Look magazine in 1956. Donham, whose testimony was entered in the trial, was said to have acknowledged making untrue statements at that time in a recent interview with Timothy Tyson, …