Hullabaloo has a list of right-wing terrorism that is unsettling. I didn't know of many of these events & I sort of pride myself with keeping up on stuff like this. Of course, it would be a crime against civility to bring it up. Here is the first thing on the list:
-- July 2008: A gunman named Jim David Adkisson, agitated at how "liberals" are "destroying America," walks into a Unitarian Church and opens fire, killing two churchgoers and wounding four others.