Missing 777 Mystery

While it sounds like something from a Tom Clancy novel, Malaysia Airlines flight 370, a fully loaded Boeing 777 has been missing for about a week.
It is clear by now that it left the designated flight path.
No ransom claims have been issued.
No debris has been found.
No black boxes or transponders have broadcasted.

So what happened?

I think the passengers and crew are likely dead. But what of the aircraft itself? Is someone weaponizing it? I think the proper identification of the hijackers is crucial to identifying likely targets. What happens next could make 9/11 look like a picnic.

Is my idea a conspiracy or just a caution? I think we will know soon.