The shortest lived known head of state is Jean I of France who ruled and lived for five days in 1316.
I’m assuming that because he was beloved and seen as a kind ruler, killing him would cause more drama and problems than exiling him.
Nationao guard troops killed several students
Because states might have an uneven amount of rebublican and democrat representatives. Say you have a state that has more democrats then republicans. The rebublicans end up getting screwed because they're is not enough of them.