[xzins]

Because multiple eyewitnesses, confession, etc. combined with physical evidence sometimes provide unimpeachable certainty.

If you and your neighbor watched me take your car from the driveway and you both knew me, and I never return your car, would you have some idea of whom has stolen your car?

Would you be absolutely certain given the above facts?

[E. Pluribus Unum]

Would you be absolutely certain given the above facts?

I would be absolutely certain, but I don't get to execute the guy.

We have a corrupt legal system in which I have zero faith.

That's the issue.