13 October 2011 started as a sunny day, which was dubbed "Ubuntu 11.10 release day". Unfortunately that day was overshadowed with the sad news that Dennis Ritchie passed away on October 8 2011.
As you probably know from my Hackwerk poster, Mr. Ritchie is one of my heroes.
More information on Dennis Ritchie and his magnificent contributions to the world are available on Wikipedia.
Thanks you Dennis!