https://www.cnn.com/2020/09/04/us/portland-protest-suspected...
> Reinoehl's sister, who asked that her name not be used, said in a statement that her "estranged" brother "believed that the country is going to war."
Pipe bombs and incendiary devices were also frequently used against police. Off the top of my head, there was at least one police officer in Chicago who was critically wounded by a pipe bomb, but again the censorship bubble is making this difficult.
There were also numerous targeted assassinations against police officers. Here is one example: https://www.cnn.com/2020/02/10/us/nypd-bronx-officers-shot-m...