What we know about the four ex-police officers charged in George Floyd's death - CNN

One of the officers had been on the job four days. One was on his third shift ever. And Derek Chauvin, who pressed his knee into George Floyd's neck for nearly nine minutes, was the field training officer for one of them. https://www.cnn.com/2020/06/05/us/minneapolis-officers-background-george-floyd-trnd/index.html