And on the front of "once you know the truth": my first true, real, experience with the Holy Spirit solidified my trust and faith in Him. So, I'd be willing to agree with that.

If I were on the jury at his trial I would take in to account that Matthew said he turned on Jesus. Matthew remembers this:

Then Judas, already turned traitor, said, "It isn't me, is it, Rabbi?"

Jesus said, "Don't play games with me, Judas." -Matthew 26:25

Then, he watched Judas appear with the soldiers who arrested Jesus. After Judas realized what he had done, he was remorseful and tried to give the money back saying that he sinned and that Jesus was innocent. But, according to the high priests who wanted Jesus killed, it was too late.

Mark makes sure that we know Judas was 'determined to betray Jesus.' He gives his account of Judas showing up with the ones who arrested Jesus.

Luke makes sure that we know Judas was the one who betrayed Jesus. He also is the one who pinpoints the time Satan entered him. It was after Jesus said that he chose which of his friends would do it and the took the bread (like the scripture foretold) and handed it to him. When that happened, Satan entered him and Jesus told him to get it over with. (I wonder if Jesus was speaking to Satan or Judas at that point.)

Then Luke gives his account of Judas showing up with the mob and tells us about the infamous kiss. He remembers this:

Jesus said, "Judas, you would betray the Son of Man with a kiss?" -Luke 22:48

John remembers Jesus calling Judas a devil. John obviously didn't like Judas because he was disgusted that Judas would act like he cared about the poor when he was nothing but a thief who embezzled money. He remarked about Judas being in the grip of Satan even when Jesus was washing their feet. John pinpointed the time when Satan entered Judas as being after Jesus gave him the bread, too. He told about appearing with the mob and said that Judas stood out like a sore thumb.

The evidence causes question. Given what Jesus said and did, it makes me wonder what was going on under the surface of those two men. However, I think there is a majority that would sentence him to hell right now.

Then, being someone who has seen (what I hope is) my personal worst, I know what it's like to be condemned without all the evidence being in. Without being heard or hearing from God. I know what it's like to do something terrible and wish I could take it back.

The trial hasn't happened for any of us yet, so there is no way we can come to a decision, no matter how condemning the evidence is.

I'll just apply to this what I am trying to teach others to apply to their own situations and relationships:

So don't get ahead of the Master and jump to conclusions with your judgments before all the evidence is in. When he comes, he will bring out in the open and place in evidence all kinds of things we never even dreamed of—inner motives and purposes and prayers. -1 Corinthians 4:5