was the bomber a member of the house of Zaid royal family? I thought I read that somewhere.
No indication of that in this article.
One of the people killed in the terrorist attack was a member of the Jordanian Royal family. He was probably the liaison officer from the Jordanian intelligence who originally recruited the terrorist as a double agent to find Zawahiri and other Al Qaeda terrorist leaders but he ended up being a full pledged Al Qaeda terrorist. The terrorist himself is Jordanian but not related to the Royal family.