At first his parents weren’t sure what to make of their young son’s claim that he had seen heaven while on the operating table. But then the boy began telling them things that he couldn’t have known such as details about his sister that they had never even told him about and his great grandfather whom he had never met. He says he knows these things about these people because he met them while in heaven. He also met Jesus and angels and learned many extraordinary things while in heaven.
His experiences and discoveries in heaven are all in the book Heaven is for Real.
Here is a clip from a TV interview with the boy and his father: