I'm happy to read it. I read the opening. Did you? It says the following.
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. On the most extreme use of force –officer-involved shootings – we find no racial differences in either the raw data or when contextual factors are taken into account. We argue that the patterns in the data are consistent with a model in which police officers are utility maximizers, a fraction of which have a preference for discrimination, who incur relatively high expected costs of officer-involved shootings.
See, its not the fact that he found little to no racial bias in fatal police shootings that I question, I've seen other studies that have said the same, it's your hilarious take on his feelings about some emails he got and the sentiment he expresses people had about his work. His feelings i dont actually care about. What you'll notice at the beginning of his piece he does find racial bias in non fatal uses of force by police which is also what I've seen from studies.