That alone should have put him in prison for life. Releasing him is simply the wrong thing to do, on every level anyone can think of.
But just consider this: the PA has been PAYING him every month since he was put into prison. Soldiers were butchered and this POS was being paid to sit in prison and watch TV.
As I've said before, Israel must take ten million dollars from PA tax revenue for every Israeli killed or wounded in an attack. If nothing else, at least the PA will feel a budget crunch. But somehow I know, just like the Nazis, who kept the trains to the death camps running while they were losing the war, the PA will pay jailed terrorists and their families until they run out of money.
Just like the Nazi killing machine that ran until the Nazis were destroyed, the PA will continue to fund terrorists until the day it ceases to exist.