Who says we do?
We deserve and need to know what happened to him from a cursory level. He didn’t have an examination required of a 102 year old with no family
Get off it
We deserve to know nothing more than what is on the death certificate, absent any evidence of foul play.
I believe, based on what is known, his death was due to natural causes secondary to medical issues. What I believe has no bearing on any decisions made by the family. In the end, it was their decision and theirs alone.
You might not like their decision but quite frankly, it is none of anyone’s business.