Dear colleagues, It is with a heavy heart that I extend my deepest condolences on the passing of our esteemed colleague and dear friend, Peter Zingraf. His dedication, integrity, and warm spirit touched all who had the privilege of knowing him. Peter's warmth, wisdom, and friendship will be sorely missed. In this time of grief, my thoughts and prayers are with his family and all those who had the privilege of knowing him. With deepest sympathy,