Jesus said to love everyone so if somebody wants to assassinate me it would be hateful and rude to deny them their free will to assassinate me.
God has a plan for all of his children and if I defy God by failing my own assassination I would be defying God.
I haven't read the Bill of Rights but I'm pretty sure it's every American's right to assassinate anyone they want because tyranny and stuff. So not only would I be defying God but I would be unamerican and a communist.