First of all, he can't be an Arab anything. He was born in the United States, which makes him American. He was Muslim, but he was not Arab. And was he a Muslim extremist? Only time will tell.

Also, what makes you think that, just because he was smart, he wasn't "sick"? And he had a medical degree, he didn't have a doctorate, to my knowledge, although it's not out of the question that he might have had both. And he had a TEMPER TANTRUM??? He slaughtered innocent people because he was having a BAD DAY??

Oh, and please, Rush Limbaugh cited as a source?? Really??