Sarin? This guy had nerve gas?
[spoiler][/spoiler
Where in the world did the good doctor get Sarin nerve gas as Dr Heidecker suggested in the storage room? There were some "Biohazard" appearing canisters, but the question has to be asked, where did the Doc get Sarin from, and why store something deadly so close to where you sleep and live? I thought the movie pretty believable up to this point.