Great. Then you know that the study that you claimed was the “only” study on this issues is not, in fact, the only study on this issue. And you also appreciate that there are many people who believe that Fryer’s analysis is highly flawed and that is suffers from major theoretical and methodological errors.
I don’t intend to debate the validity of the study - just to point out that the assertion that it is the “only” one is incorrect and implied assertion that its findings have been found to be “fact” is also highly debatable.
In fact Snopes did a whole piece on the study - http://www.snopes.com/2016/07/15/harvard-study-officer-involved-shootings/