He had been an fbi informant, but. Webjohn turscak, a former mexican mafia member and fbi informant, was charged on friday with attempted murder in the stabbing of former minneapolis police. Webjohn turscak, 52, is accused of attacking chauvin in the law library of a tucson federal prison on black friday. Federal prosecutors a llege he used an. Webfederal correctional institution (fci) tucson inmate john turscak was charged with allegedly stabbing former minneapolis police officer derek chauvin 22 times. Webjohn turscak, 52, has been charged with attempting to murder mr. Chauvin, a former minneapolis police officer who is serving more than two decades in prison for. Webjohn turscak stabbed chauvin 22 times at the federal correctional institution in tucson and said he would've killed chauvin had correctional officers not. Webprosecutors alleged that john turscak, 52, assaulted chauvin with a makeshift knife in the law library at the federal correctional institution in tucson,. Webjohn turscak was in federal court today for his arraignment. Webjohn turscak stabbed chauvin 22 times at the federal correctional institution in tucson and said he would have killed chauvin had correctional officers not. 1, the u. s. Attorney’s office charged john turscak with attempted murder, assault with intent to commit murder, assault with a dangerous weapon, and. Webminneapolis — the inmate who allegedly stabbed derek chauvin in federal prison last week was identified as john turscak, according to new charges filed. Webnew charges filed on friday have identified the inmate who allegedly stabbed former minneapolis police officer derek chauvin in federal prison last week as john. Webfederal prosecutors revealed that turscak intended the attack as a symbolic gesture connecting black friday to the black lives matter movement, which gained. Webturscak, 52, has been charged with attempted murder, assault with a dangerous weapon, assault to commit murder and assault resulting in serious bodily injury.