“At least seven prisoners died and 17 were seriously injured after bloody violence broke out Sunday night at a maximum security prison in South Carolina. It was the deadliest prison riot in the United States in 25 years. A coroner said all of the prisoners were stabbed, slashed or beaten. Six of the seven were African-American. No guards were hurt. In total, at least 20 prisoners have been killed by fellow prisoners in South Carolina since the start of 2017.”