I think the issue isn’t just police killing unarmed black people but also an incredibly large disparity in use of all physical force which your stats allude to:

>This paper explores racial differences in police use of force. On non-lethal uses of force, blacks and Hispanics are more than fifty percent more likely to experience some form of force in interactions with police. Adding controls that account for important context and civilian behavior reduces, but cannot fully explain, these disparities.