Shawn Xiang Zhang
So sad. Several years ago I was close to having the opportunity paying Bob a short visit, after 20 years away from Ames and graduate student life there. But the delayed flight stop and just-closed boarding gate took it away from the tight schedule. Over the years I thought about a lot and enjoyed those old time and memory. Bob was kind, understanding and supportive, in lab and life alike. I will miss him very much.

