Was the body contaminated in some way?
Was the man famous? Would he have been famous before his death?
I have a hunch, but the case I’m thinking of would, in fact, have involved “a fall from a height”.
Was he an astronaut/cosmonaut?
NO.
Word count.
Does the location where he died matter?
Was it a house fire?
Work related?
Did the man spontaneously combust, and his body was claimed by the FBI
for scientific research ?
NO to spontaneous combustion
NO to any kind of claim by the FBI or scientists 
Was he a firefighter?
Was the fire started by his actions?
Did the fire occur at a residential property? Place of business? Public building? Government property? Not a building, e.g. forest fire?
Was there some law that prevented him being buried there?
Would he have been buried there if his dog had not been there?
Good questions.
Was fire a part of his job?
Or was this just a straight-up uncontrolled “call the fire department” kind of fire?
Yeppers.
Was he a cook or baker?
And I know I’ve been asking some kind of gross questions, but will the actual answer be kind of gross?
Did he work in a crematorium?
NO
good questions
Will part of the solution be figuring out where he was laid to rest instead?
NO.
We don’t need that at all.
Was somebody else buried in his reserved grave?
Just his dog as far as I know.
Were they unable to identify his body due to the fire?
Did he die a great distance from his home? Another country?
I’m going to break this question down for you.
Were they able to identify his body? NO, NOT FOR SURE.
Because of the fire? YES AND NO. He was not burned to ashes; there was a body, not just a pile of ash. So while the fire was a big part of the problem, it is not the only thing contributing to the lack of identification.
NO