Is there a word to describe the smell of death?
Never mind. I think I found it. Not sure if this is the actual name of the smell though.
Cadaverine - a foul-smelling diamine compound produced by the putrefaction of animal tissue.
Putrescine - a foul-smelling organic chemical compound that is related to cadaverine; both are produced by the breakdown of amino acids in living and dead organisms and both are toxic in large doses
(Source: Wikipedia)