spontaneous human combustion has bee solved. it has been proved that fat that is no more than 3 day's old (roten) will burn in a cool light fire. damageing only the imediate area around it. the clothes act as an igniting fuel. burning slowly it then light's the body and the body burn's. like if you put a rag around a small cylinder of plastic the plastic eventually burns. also the bones are made of fat 67% when the body is not rotten. muscle tissue will not burn because is has very little fat mostly muscle so stay in shape and never die of S.H.C.