2 of my kids got to experience Mark during various city summer camps at Amazon. He was all inclusive with my special needs child, and she had a blast. My oldest said today: "I'm sad, but I'm happy because I remember how much fun I had with him. It's bittersweet." To his family we say: from the bottom of our hearts, we wish you strength, and we hope you find comfort in the fact that he was loved by so many.