Derek Chauvin, the former Minneapolis police officer convicted of George Floyd's murder, is expected to survive after being stabbed in prison on Friday. His lawyer has criticized the lack of transparency by the Federal Bureau of Prisons following the incident, and a law enforcement source said Chauvin was seriously injured. The Office of Minnesota Attorney General said Saturday that Chauvin was expected to survive, but the Federal Correctional Institution in Tucson, Arizona, where the incident took place, has been plagued by security lapses and staffing shortages.