Derek Chauvin was stabbed 22 times - inmate charged with attempted murder

An incarcerated former gang member and one-time FBI informant was charged Friday with attempted murder in the stabbing of ex-Minneapolis police Officer Derek Chauvin at a federal prison in Arizona.

John Turscak stabbed Chauvin 22 times at the Federal Correctional Institution in Tucson and said he would have killed Chauvin had correctional officers not responded so quickly, federal prosecutors said.