One of Muhammad Ali's daughters is describing her father's last moments, saying his heart wouldn't stop beating for 30 minutes after all of his other organs failed.
Hana Ali writes on Instagram that "no one had even seen anything like it."
[RATTO: Muhammad Ali: The icon who represented our best selves]
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She says the family was surrounding Ali, hugging and kissing him, holding his hands and chanting an Islamic prayer while his heart kept beating as his other organs failed.
She calls it a "true testament to the strength of his spirit and will."