Witnesses at the scene told CBS Colorado that the suspect attacked people with Molotov cocktails who were participating in a walk to remember the Israeli hostages who remain in Gaza.
Run For Their Lives, which organized the walk, said, "This is not a protest; it is a peaceful walk to show solidarity with the hostages and their families, and a plea for their release." The group met at 1 p.m. at Pearl Street and 8th Street to walk the length of the Pearl Street Mall and back with a stop at the courthouse for a video.
If it was actually a rally in support of the hostages, then it would be an anti-Israel protest over that government's refusal to accept any deal to secure their release and the active perpetuation of military "rescue" operations that have killed said hostages.