From the AP story:
"Saget’s left arm was across his chest (emphasis added) and his right arm was resting on his bed "
- see https://www.syracuse.com/celebrity-news/2022/01/bob-saget-found-dead-lying-in-hotel-bed-no-trauma-or-foul-play-report.html
I am not sure if you disagree. But in my book chest equals heart.