Comment: You remain in the position you die in.

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In reply to comment: Why not nerve gas? (see in situ)

You remain in the position you die in.

In my first year of dental school I saw an autopsy photo of a guy who was shot and killed instantly by the police while he was sprinting. When he was on the cadaver table with rigor mortis he was in a 'pose' of running.

I think I remember the professor saying that they couldn't fit the body into a bag, but I'm not positive.