We are up to six, as of this writing. Six.
I don't think this is stochastic terrorism, some random crazy. This looks to me like organized and planned terrorism. Now, terrorism is violence for the purposes of political propaganda. So if I'm right, we will see other parts of the propaganda campaign emerge soon. Anything is possible. A "false flag" operation. A call for a white supremacist uprising. Or something even stranger and more brutal.