i think killing of a democratically elected leader is not acceptable in any civilized society no matter how cruel or corrupt he/she is  while there are other constitutional options available to remove him from office. . The history of democracy vindicates that it is not the best system to run the government but having said that what is other better alternative. The world has already witnessed  terrible disasters created by  authoritarian and communist regimes in many parts of the world.

So if you feel the need to kill your leader, chances are you're either mentally ill or not in a democracy.

Probably the former.