[razakel]

That still leaves the question of "why?". If he wanted to commit suicide he could have had an "accident" in a light aircraft instead of murdering 238 people, and the entire point of terrorism is for everyone to know it was you.

[avidiax]

The secrecy was the point. For whatever reason, he didn't want to be remembered as suicidal and murderous.

[razakel]

Odd choice, now that it looks like he will be.