It is important to note that in many parts of the country, the local authorities are reluctant to prosecute left-wing extremists. Their charges are often dropped or at least reduced to misdemeanor fines. Having charges dropped or reduced does not mean the person never committed the offense. Also, under US law, all suspects are considered innocent until proven guilty in a court of law.
Seattle-Tacoma Metro Area:
September 1st, 2020 firebombing of a Seattle police station (three have been charged):
July 13, 2019, terrorist attack on an ICE detention center in Tacoma by self-described Antifa and member of PSJB Gun Club Willem van Spronsen
Puget Sound John Brown Gun Club
Portland Metro Area:
On August 29th conservative activist Aaron Danielson was shot and killed execution-style by a self-described Antifa member Michael Reinoehl. Antifa rioted during a pro-Trump demonstration. Video shows a group of people stalk Danielson, surround him, and then aid Reinoehl in escaping.
Danielson was later shot and killed in self-defense by US Marshalls in Lacey, Washington.