It's crucial be able to hold government officials accountable. However, I think your argument is based on the premise that people only decide to kill others as a result of a carefully reasoned decision. This is not the case. There are plenty of legitimate ways one can take action after being wronged by the government, from appealing to a higher court to going to the media; killing people is not one of these.

People who kill others in situations like these rarely come to their decision based on fact and rationality. As much as we need more accountability, putting government officials - or anyone else - in a potentially life-threatening situation at a time where armed terrorists regularly make death threats based on baseless conspiracies is not a good way to do that.