This keeps gettting weirder and weirder. Now when I first heard the story I thought the guy put the bomb around his neck and went to rob the place. Then after I read the FBI wasn't even sure if it was possible to put the bomb on himself (I mean the thing had 4 key locks and a combination lock) I started thinking whoa! How the Hell could he have put it on himself. And then who would start the timer on the bomb themslelf? I mean if you were going to use it as a prop to rob a bank would you really start the timer???
Now this business about the note. That's news to all of us. I'm more and more thinking this guy was the victim.
I am convinced the guy (who blew up real good) was innocent. If he were any actual part of this robbery plan, he wouldn't put a real ticking bomb around his neck and then have no idea how to disarm it.
If this guy were in on the plan, there would be no need for an actual bomb, just a collection of hardware and lights that would terrify a bank teller and security guards. A real bomb would be a tremendous liability and unnecessary.
Nope, this guy was set up by some cold-hearted dudes. Unless there was any physical evidence on the guy or the bomb, it will be really tough to find them, too. And these cold-hearted dudes will likely try something again.