"He was using his citizenship as a shield"
We the People, Not we the citizen. Bill of rights, not shield.
"He was continuously trying to kill people"
no that is what you do obama.
Even murderers still get a trial, the cops don't chase down murders with missiles they go out and arrest under the law.
This rhetoric is not only war propaganda it is a suggestive proposition to redefine executive power to go to war with any American without a need to prove any allegation.
A true flower can not blossom without sunlight and a true man can not live without love.