I am very sorry to report that Greg Chesson, of Ahteros, SGI, Bell Labs, and most recently Google, has died after an illness. Last year he received the Univ. of Illinois Alumni Award for Distinguished Service from the College of Engineering (https://cs.illinois.edu/news/chesson-receives-alumni-award-distinguished-service
). His role in the early days of UNIX development was too extensive to even begin listing here. I fondly remember hanging out with Greg at Bell Labs Murray Hill when I'd come east to visit. Back in the day, he had a featured role in a Bell Labs recruiting video, linked to this post. He will be greatly missed. Condolences and best wishes to his loved ones. Peace.