Yes many would notice and care. Blood spatters from shooting victims. It can travel a way. Might get on someone. Yes, they'd care. (sorry, bad attempt at humor)
Blame and denial are common in any death. It's doubtful anyone would think that being ostracized had anything to do with it. Anyone but themselves and their policies will be blamed and any responsibility will be denied by anyone and everyone. Us? We could have contributed to this? Nope.
My guess is that anyone but themselves and their policies ruined you. You could be deemed "mentally diseased"...no fault of theirs and nothing to do with their cruel practices. A life well lived will affect them more than anything you could do....and it's the best revenge.
Best guess about your family seeing it's not the truth, without knowing your family, is they would think that "if only" you'd have "returned to Jehovah" it wouldn't have happened. When someone accepts the "truth" about anything, it has to be in their time and on their terms.
My hope is that you see the truth in how many people care about you. Things will get better. It's been my experience that you don't want a long term solution to a short term problem. Sending you a virtual hug and hoping we'll all be here to see when that cruel psycho Corporation collapses on itself.