This is not true. Here is one example of a retired St. Louis Police captain/current (at the time) police chief of Moline Acres being killed.
https://www.stltoday.com/news/local/crime-and-courts/retired...
There are other examples as well.
> Had every BLM protest been as violent and unhinged as the capitol protests,
Aside from the single police officer, all the deaths seem to have been protestors. At least two were killed by police - one was shot by the police, and the other was pushed off a balcony.
It is the case that between two and three dozen people were killed during the BLM protests and associated actions like the autonomous zone, with nearly all of them, judging by the articles I have found, being victims of the protestors rather than protestors themselves.
Also, not to diminish the death. But he was not a police officer. He was retired and doing security work for a friend.
Had every BLM protest been as violent and unhinged as the capitol protests, we would have had thousands of deaths.