Apparently in all of the BLM protests, which were both peaceful and sometimes very violent (including storming at least one government building), only one unarmed person was shot to death by police.
Citation?
I'm only aware of one person _at all_ being shot by police re: BLM. And they had a gun, and were scaring people by having their finger on the trigger. A police officer got shot in the head that day too. But my info could be out of date on that.
Source: https://theguardian.com/world/2020/oct/31/americans-killed-protests-political-unrest-acled…
'Nine of the people killed during protests were demonstrators taking part in Black Lives Matter protests. Two were conservatives killed after pro-Trump “patriot rallies”. All but one were killed by fellow citizens.'
As for the exception...
Oh yeah, that one. I don't have a stake in this being protest related or not, I just got it from the list of deaths wikipedia considers to be blm related. It might not be tho