Prof. Richard T. Antoun was a Jewish convert, through his wife in Binghamton NY, in the Reform tradition, see preface from his book, click here. Prof. Richard T. Antoun had a Muslim grand-father and a Catholic grand-mother on different sides of his family
http://pibillwarner.wordpress.com/
He wrote books
Books by Richard T. Antoun include: * "Understanding Fundamentalism: Christian, Islamic and Jewish Movements."
* "Documenting Transnational Migration: Jordanian Men Working and Studying in Europe, Asia and North America."
* "Muslim Preacher in the Modern World: A Jordanian Case Study in Comparative Perspective."
* "Religious Resurgence: Contemporary Cases in Islam, Christianity and Judaism."
* "Low-Key Politics: Local-Level Leadership & Change in the Middle East
I the Muslim grandfather was his paternal grand-father, he might not have needed to *do* anything to provoke the attack: merely being a Jew would have made him an apostate in the eyes of either a Qutbite or a traditional Sunni.