Rest in Peace Adam, gone much too soon. Thank you for posting that link so I can read about him. His legacy is the wonderful work that lives on in the games I play and love because he was so talented.
I never heard of him personally but I tend to not check each person individually from a team who make a game. But I love all of those games mentioned that he worked on and can say that the first thing I always notice in those games is the scale and beauty of the worlds so he was obviously very talented, and I am sure he will have inspired many budding artists with his work.