How do you know he went to Hell? We are saved by faith and not by our own works. Leave the sending to hell to God and despite all Kennedy’s flaws I pray he he is saved and sent to heaven.
I spoke with a man who was a pastor for 47 years. During that time, he witneesed to thousands of people who were sick or close to death. Do you know how many "death bed conversions" he said he had in all that time?
Two.
Unless Kennedy accepted Christ during his last days on earth, then the Bible tells us what his fate was.