Residue would STILL be detectable. Especially from such a high powered explosive. Material like that isn't common, and wouldn't definitely raise flags during forensic testing.

I'm just saying I don't believe that it was an explosion. As far as the whole incident being somehow planned, I'm not saying that isn't possible. I'd say it's more LIKELY that it was some type of accident, but I'm not disputing that it could have been a planned attack. I just don't think it happened the way others are suggesting is all.

Residue would STILL be detectable. Especially from such a high powered explosive. Material like that isn't common, and wouldn't definitely raise flags during forensic testing.