Thank you for letting me know how to find the statistic. It checks out. Now to the basic point that it doesn't demonstrate systemic bias. According to your stat, Blacks are 3 times more likely to be killed by police, because 28% of those shot are Black while Blacks are only 13% of the population. But Blacks are 7 times more likely to be arrested for murder. According the FBI UCR , Table 43 A there were 4,078 Blacks arrested for murder versus 3,650 Whites in 2019.
That means Blacks were just over 50% of those arrested for murder. The whole case for systemic bias falls apart when you compare how low the 28% rate is to the 50%. In fact, it goes the other way. Police are far less likely to kill Blacks than Whites relative to the rate by race at which they are charged with murder. Roughly the same holds true if we did the comparison relative to percentages of murder victims by race. I have yet to see a data-based explanation for why police kill Blacks less frequently than Whites, but they do.