Larry, as even the FBI admits (last time I read this was 2015, also in the Guardian), US statistics of police killings are woefully incomplete; probably the only less accurate 'body-count' available would be the tally of Iraqi civilians killed by US occupation forces, because they didn't keep one.  Pretty much for the same reasons, IMHO. 

Oh yes, the known 2015 tally was higher than I previously noted--1,199, of which 574 were people "of color", 511 were "white" and 174 were 'undetermined'.  I admit I don't get that last.  How can you have someone killed by a cop and not know what color the victim was?  Did they explode?  Disintegrate?  Catch fire?  Melt?

Even for centuries' old corpses' "race" can usually be determined by forensic anthropologists.  But we can't do that for last year's police shooting victims?

How is it we know how many people went to see which movies last year but DON'T know how many of our people are gunned down by police?