I don't think that's exactly right. The religious doctrine that supports "Behead those that insult Islam/Muhammed" is based on sha'ria - Islamic law. The murder

I don't think that's exactly right. The religious doctrine that supports "Behead those that insult Islam/Muhammed" is based on sha'ria - Islamic law. The murder would just be an enforcement of the law, and not a ticket to paradise. (I believe you are thinking of jihad, as best I can remember the only ticket to paradise is not fighting in jihad, but dying in jihad.) Bit of a quibble, but there's a bit of a difference between a ticket to paradise and simply enforcing religious law on people who do not live under sha'ria or follow that religion.