[sten]

so the real question is... are there any quick acting poisons that produce those symptoms

i’m fairly certain the answer is going to be ‘yes’

[netmilsmom]

http://www.youtube.com/watch?feature=player_embedded&v=tzIw44w00ow

heart attack dart

[Scutter]

It is not uncommon for someone that is dying to have agonal respiration - it isn’t a sign of foul play. For example, I once saw a woman who had terminal bone cancer, and who was about to die do that. She passed away a few minutes later.