Wow, atheist types really get hung up on "proof" and "evidence".
You could have placed a video taped security record of the murders in front of the OJ Simpson jury and they wouldn't see it.
If someone yells "Hey! A bus is coming around the corner and will RUN YOU OVER!!!" How much evidence would you need to get out of the road?
The objective of governance is not to achieve absolute proof. It is to achieve optimal conditions of pleasantness and decency for the individuals subject to it's jurisdiction.
It isn't enough to hope that people will behave of their own accord. people will quickly imagine "justifications" for anything. People require fear of judgement from an undeniable power.
Atheism fosters the idea that there is no inescapable ultimate power. The great totalitarian tyrannies of the 20th Century were essentialy atheist.
Of course, not all forms of theism are created equal.
To identify a form of belief that can be utilized for positive governance, it would have to display certain features:
It must provide a reason to greatly fear the judgement of acts that defeat the purposes of "governance", as opposed to tyranny. It must authorize earthly agencies to enforce the universal principals of Civil Law, while insisting that tyrants bear NO authority to impose their lawless will. It must authorize individuals to defend themselves, their families and their neighbors from outlaw powers. It would not bring discredit upon itself by suggesting that the ultimate power needs to be protected and promoted through violence. It must consistantly promote all that tends to create the strongest and happiest human societies.
"Absolute Proof" would defeat the purposes of a Creator who wishes to test the character of his creations.
Keep crying for absolute proof and you will see the type of characters who don't give a damn about that sort of thing holding ABSOLUTE POWER over you and everyone for whom you care most.