David Edwards was in desperate need of a kidney transplant when he opened his mailbox to find a handwritten note from a stranger.
It said: "I wanted to make sure all the results were final before asking you this question. I have a 53-year-old kidney. Would you like to have it?"
The letter was from John Hembree, a man that David met only once at church.
A month after the transplant, we caught up with them again to see how they're doing.
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