OK, so, the Jews aren't to blame and neither is Judas. I'm sure the Romans were quite conflicted about killing him as well. At this rate, scholars will soon "discover" that Jesus did in fact die of a severe head cold.
Last time I checked, Jesus was killed by crucifixion, nails applied courtesy of the Roman Army.
This simple fact seems to escape a lot of people. I think the Roman authorities had a lot of influence in which Gospels were accepted and which ones were rejected. By rejecting the Gospel of Judas, the Romans were convenitently able to deflect blame from themselves and onto Judas and the Jews who supposedly demanded Barrabbas be freed, not Jesus. The new view of Judas has the ring of truth to it and makes a lot more sense.