People like your case manager make the world a better place. You will always think of him fondly and you may feel sad now but later it will give you strength. You are going to be successful--I have thought this for a while. When you graduate; find a position/ are self-employed--eventually there will be a time when you can help others too. Because of his example, many of the people he helped will go on to help others too. His positive impact will live on through you!