I don't know enough about the unabomber but from what I heard he wasn't trying doomsday stuff. Seemed like more targeted assassinations at certain individuals. Feel free to enlighten me though...
And then there was the idiot that tried to draw a smiley face with bombs on the map of the USA:
https://abcnews.go.com/US/story?id=91668&page=1
Because hey, why not...