I recall a magazine article twenty years ago that speculated Fidel had gotten hold of a few Chinese suitcase nukes. (I'm not sure I believe in the existence of such things as real threats but let's not spoil the story.) As his last deathbed act, with the knowledge if not approval of the Chicomms, he detonated them in several US cities, and one in Red Square as lagniappe.
This was back in the day whe we we were certain the Chinese were crazy, and we did not worry about radical Christian fundamentalists or rogue states getting nukes. Still, it brings to mind tyrants who, like Jim Jones, can't go out alone; they must take as many of their own people with them as they can.
Hitler and Saddam fit the profile. You could argue Stalin and Mao did. Kim Jong Il and Fidel might, but let's hope not.