http://mydeathspace.com/article/2010/10/08/John_Parisis_%2837%29_died_from_a_heart_attack_aft er_he_became_stuck_in_an_ice_crevasse_on_a_glacier
This guy weighed 339 pounds. I wonder what ever possessed him to go on an all day hike if he wasn't in good physical condition? He died trying to squeeze through a gap that was 14 inches at the waist.