Nevertheless, all of the data on LE murder agree that there is no racial disparity in victimhood. We can and should collect better data, but "police disproportionately murder blacks" is not supported by the evidence.
I did a deep dive into the WashPo 2015 and 2016 datasets which are more both more recent and complete than the FBI datasource used by propublica. Further, you can actually inspect in detail the circumstances in which the shooting took place, including whether or not the deceased were armed.