How do the following diseases kill you or cause death?

toxic epidermal necrolysis, osteosarcoma, gangrene, amyotrophic lateral sclerosis, ischaemic heart disease,sarcoidosis, emphysema, gastroenteritis, renal calculi, huntington,s disease, and tay-sachs.

http://symptoms.webmd.com/default.htm search here

Do your own damn homework.