I heard he was hiding out in New York. My teacher was telling me of a story about one of his patients that was dying from cancer and the patient said Yan Xin herbs could fix him. So he emailed him and got a formula to prescribe the patient however the patient still died. I was like you have Yan Xin email address. About 20 years ago he use to hang up a photo of them two together but then he took it down.
Here is a link to his Child 9 Steps longevity Qigong lecture/meditation. https://youtu.be/tHug6h3KyCE