If he isn't dead already, I'd wager that he will be soon. Intelligence sources seem to think he's the "operational commander of Al Qaeda," and he is being hunted worldwide. But he's a clever fellow with a penchant for anonymity, aliases, and escapes. The LA Times has published a very lengthy and very interesting article about this dangerous asswipe and his compadres. I found it fascinating (and disturbing), but don't start reading it unless you have time on your hands.
I don't support capital punishment, and I'm certainly no fan of extra-judicial political assassination. That said, if half of what the LA Times says is true, I won't be losing any sleep when I find out someone has turned this murderer's head into a fine red mist. And it won't be long. Sleep tight, Khalid. Your virgins await you.