Just a couple of important distinctions need to be made with your analogy Eggy . . .
Firstly . . . there is no jury, nor a requirement to submit evidence in God's courtroom . . . for he himself is judge, jury and executioner. His omniscience means all the evidence is before him. The courtroom premise is fundamentally flawed and ill-fitting for this basic reason.
Secondly . . . the "guilty' have been given that status from the moment of conception, by virtue of the actions of another . . . unlike OJ, they have no control over that.
These "clean slates" are all very messy really . . . one who dies is acquitted of his sin . . . a clean slate. But he also needs Christ's ransom . . . to get a clean slate. That's two clean slates. Yet 90% of the worlds population probably have no idea of this ransom and how to get a "clean slate" . . . so they don't even get one, unless they're fortunate enough to be dead already.
OJ certainly got a way better deal than that.