Granted it could have been a heart attack but let me throw some conspiracy thoughts out there just to spice up the convo
If you wanted to get rid of someone but there could be no suspicion surrounding their death, wouldn’t you look into their medical history? If there were drugs, that would be a slam dunk, but say there was nothing so juicy in there. Just a heart problem a year or two ago. A heart problem that was being treated with medication. A heart problem for which the patient was doing everything right, diet, exercise, etc.
Still, there was a heart problem. Just sayin’
Sad to say, but when you are “young” and have issues - you’re in deep doodoo. It’s expected and pretty normal when “old”, but having cancer or heart problems this early usually means something is really wrong with your whole make-up, and can be harder to deal with. It’s noted by doctors over and over, in so many words (I have my list of issues, too, and have run across words to these effects regarding mine and related medical problems).
As a slight aside, I’ll never forget the local sportscaster here who dropped dead at a school basketball game. Yes, he was playing for their benefit, but he was 32. Some heart thing caught up with him. No one knew, and it was a real shock to the most popular news team in the region.