Israeli media is reporting his name is Elias Abu El-Azam. A Christian Arab from a small, predominantly Christian town in the city of Ramle in the south of Israel.
Here’s another article with more info about Abu El Azam.
http://www.ynetnews.com/articles/0,7340,L-3935338,00.html
Wikipedia shows Ramla to be 80% Jewish and 20% Arab(16% Muslim and 4% Christian) as of 2001.
http://en.wikipedia.org/wiki/Ramla#Demographics