All of these stories are mere speculations, they mean nothing.
The investigation should be completed soon so all the stupid stories could be put to rest.
Noone has any reason to kill him, also about the blood and vomit, it's heart attack brought by strees and age. It's normal to have vomit and blood during heart attack.
I encourage people to be more responsible and post decent message as educated indians..don't know how there are in india