There’s another threatening one floating around directed at a Trump supporters threatening to do violence against a Trump supporters, should Trump refuse to step down. A Facebook friend Posted it, I don’t have the computer skills to link Facebook here. Apparently has shown up in several states.
this has a number of towns getting them in the comments:
20 Oct: WMUR: Police investigate threatening letters sent to Trump supporters
https://www.freerepublic.com/focus/f-news/3895819/posts