What did the empty shells we found previously, look like?
Did this shell look like those shells?
When and how was this shell manufactured? I'm saying that I don't know enough to come to any conclusions. Was it homemade? If you only own one shell, why mark it? How was it delivered?
I know that sarin is pretty easy to make. I don't know anything about binary components. Are they easier to make or harder?
Don't let me discourage you. If you think there's plenty of info here to run with, then be my guest.
Personally, I hope that this is carefully investigated, and the results publicized before the election. If the results are good, I might change my vote. [on second thought, not likely]