Chauvin is serving a sentence of 22 and a half years in prison.
The details were released in charging documents obtained by AP and other outlets.
They identify the alleged assailant as John Turscak.
Derek Chauvin’s mug shotMPD
Chauvin was reportedly stabbed by another inmate.
Despite that, Chauvin pressed his knee on the mans neck for almost 10 minutes.
The incident and video of it sparked a wave of protests across the country.
Chauvin was later convicted and sentenced to 22 and a half years in prison.
On Monday, the Supreme CourtrejectedChauvins appeal of his conviction.
