I can't believe he's gone. Marc was one of the funniest, most compassionate, smartest, and most generous people I have ever known. Those words don't seem to describe well enough the person that he was. I hadn't seen Marc in years (except on Facebook) and the sadness I feel is as deep as if I had seen him just a few days ago. The reason? He made an impact. Whether you knew him for 5 minutes or 5 years...he made an impact.