Words can not express our sadness when we heard the terrible and shocking news. Xibin and Qingyang have been great friends to us. We still remember back in graduate school at Boulder, we had so much fun at your place! Your home was our weekend home far away from home. Xibin was always so cheerful, with a smile on his face, always thinking of friends and family. It's too bad we lost contact when Xibin left JDE. Now that we're also in Seattle, please feel free to let us know if there is anything we can do to help. We wish strength and peace for Qingyang and the whole family; Xibin would want you to live your lives fully, as he has always been. He'll always have a special place in our memories, Xuan and Na