It was sad to find out one of the smartest guy in SharePoint,Patrick Tisseghem has passed away. I don't know him personally but i have read countless articles he has written on his blog, TechNet and MSDN, presentations he has done and books he are written.
My deepest condolonces goes to his family and friends.
Here are some of links referencing why we will all miss Patrick Tisseghem very much.
Sarbjit Singh Gill