According to this:

A Florida professor and seven other men were charged Thursday with operating a global terrorist organization that the federal government says is responsible for the deaths of 100 people in and around Israel.

University of South Florida computer engineering professor Sami Al-Arian is the North American leader of Palestinian Islamic Jihad, Attorney General John Ashcroft said in announcing the federal indictment...

I was going to try to compile a list of his supporters, such as Salon's article 'The prime-time smearing of Sami Al-Arian'. However, apparently the Freepers have beat me to it, compiling a list of his supporters, such as this. (Bear in mind, this is just an indictment, and he hasn't been cleared or convicted.)