Former officers charged in Tyre Nichols' death barred from police work.

Four of the five former Memphis police officers charged with second-degree murder in the killing of Tyre Nichols have been decertified by the Peace Officer Standards & Training Commission, barring them from ever working in Tennessee law enforcement again. The former officers have 30 days to appeal the decision. Nichols was beaten by officers during a traffic stop in January and died three days later. The U.S. Department of Justice is reviewing the Memphis Police Department's policies on the use of force and de-escalation strategies.