You'd have saved yourself a lot of unnecessary pummeling by stating that at the outset.
You have my sincere condolences, as my father was also only 68, and my little brother (sole sibling) only 44.
Your original comment was still callous, but at least, now, understandable.
My dad died at 68 heart disease. I would have given anything to have him do what Cheney did and live to see his second Granddaughter.