Reply #11: It's those that he was trying to kill that justify the taking of his life.

[geek tragedy]

Now, fortunately, he will not get a chance to plan any more attacks to kill Americans.

Note, btw, that his fingerprints are on terrorist attacks such as 9/11 and the Ft Hood shootings (email penpals with Nidal Hasan, frequent contacts with 2 or three of the 9.11 hijackers) as well as his coaching of the underwear bomber etc etc etc.