Kirk, Spock, McCoy, and Ensign Liebowitz Beam Down. Who Isn't Coming Back?

Answer: Al Qaeda's number 3 guy:

Al-Qaeda's third-ranking operative, an Egyptian who was a founding member of the terrorist network and a key conduit to Osama bin Laden, has been killed in Pakistan, according to a statement Monday from al-Qaeda that U.S. intelligence officials believe is accurate.

A U.S. official said there is "strong reason" to believe that Mustafa Abu al-Yazid, known as Sheik Saeed al-Masri, was killed, apparently by a CIA drone strike in Pakistan's tribal belt within the past two weeks.

I've seen this episode before.