"The conversion to Islam is not abandoning Christianity or Judaism, which I was born with. It means I have accepted Mohammad and other prophets."
Um, don't say that first part too loudly while you are in Iran. Sean Stone is surely free to do what he wants. But in their concept of Islam, Stone submitted to Mohammed and most surely did abandon the religion he were born with. I also assume Stone became a Shia Moslem since he converted while in Iran.
Oh, and Islam is the religion Stone will surely die with. There is no going back as far as the Islamist nutjobs are concerned. Accept that, too.
I assume Ali Stone will live in the West where it is much safer to be a religious minority. If he's smart, he won't even want to live in a Sunni dominated Moslem country, for that matter.