3 co-defendants on state witness list in trial of ex-cop charged with killing George Floyd Derek Chauvin's trial is scheduled to begin with a motion hearing on March 8 in Minneapolis. A separate trial for the other three former officers is set to start Aug. 23. Written By: Matt Sepic / MPR News | 6:50 pm, Feb. 8, 2021 × Former Minneapolis police officers (clockwise from top left) Derek Chauvin, Tou Thao, Thomas Lane and J. Alexander Kueng are seen in a combination of booking photographs from the Minnesota Department of Corrections and Hennepin County Jail in Minneapolis. (Minnesota Department of Corrections and Hennepin County Sheriff's Office / Handout via REUTERS / file photo)