[louden]

The methodology they used seems very good and the fact that they share the code is excellent.

However, in a study like this, data quality is likely going to be a problem. Collecting good data about the shootings themselves is incredibly difficult considering we have 18,000+ police jurisdictions in the United States and even mundane things like reporting can very between them. Furthermore, the chaos of the situation may make data quality suffer.

Unfortunately, the best we can do is announce the limitations of the studies, as the authors did.