Nation In trial of officers in George Floyd’s death, was it their duty to intervene? February 7, 2022February 15, 2022N'dea Yancey-Bragg, USA TODAYComments Off on In trial of officers in George Floyd’s death, was it their duty to intervene? Former officers Thomas Lane, J. Alexander Kueng and Tou Thao didn't stop Derek Chauvin. Experts say training and police culture are to blame.