Oh that's a shame, I've watched loads of his videos and taken a lot of knowledge from them! Rest in peace Bonsai man, at least where you're going there's all the time in the world to grow and perfect as many bonsai trees as you wish!
I always enjoyed his positive energy and overall jovial attitude when working trees. Condolences to the family. I hope they know he will be immortalized not only in the trees he took care of, but also in the trees of all those he helped along the way. I didn't know this until today, and it saddened me quite a bit to hear we have lost such a great teacher and person. Rest in Peace.