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Re: Colorado shooting - fire alarm
Theaters usually have high ceilings and I imagine that the tear gas caniste=
r he used had a fairly light charge--not enough to fill the space and, I be=
lieve, most formulations are heavier than air. With no heat plume to drive=
to fumes to the ceiling, stratification would keep them away from the dete=
ctors.=20
jewellfish
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