I wish I got a chance to meet Ian before this happened. Debian was my first Linux OS and the person who ran such a successful, widespread and serious open source community - who opened opportunities for milllions of people - was one of my greatest heroes. I also enjoyed reading his blog posts occasionally, they were good natured, sometimes humorous, and I imagined Ian's personality to have been exactly like that - which is confirmed by the many obituaries now pouring out.
His last tweets arouse great suspicion. It would be nothing short of heartbreaking, frustrating and infuriating if he actually died because of maltreatment by the police. However, there were rumors of him being namecalled from 4chan in those last hours, and I wonder if there was any hacking activity on his stream toward the end.
With his family, understandably, only requesting for privacy - we may never know.
But to me, an important light in the open source community turned off with Ian's passing. A person who affected my life positively without ever knowing me is now gone, and I'm only left with the regret of not even emailing my thanks at least once.