The former Minneapolis Police officer who pressed his knee into George Floyd’s neck was charged with second-degree murder and the three other officers on scene during his killing are charged with aiding and abetting second-degree murder, according to court  documents.

The three other officers on scene, Thomas Lane, Tou Thao and J. Alexander Kueng, are charged with aiding and abetting second-degree murder and aiding and abetting second-degree manslaughter.

Chauvin, who had his knee pressed into Floyd’s neck for nearly nine minutes, had previously been charged with third-degree murder and second-degree manslaughter.

Lane and Keung, who helped restrain Floyd, and Thao, who stood near the others, were not initially charged.

Minneapolis Police Chief Medaria Arradondo fired the four officers and said they were “complicit” in Floyd’s death.