Hi, I have known Fred for over 40 years. He was the kindest man with the biggest heart I've ever known. Having conversations with him over the years, I've come to realize his intelligence level was far superior to any other person I've ever known! When I first met him we became instant friends (I think). Little did I know of all the inspirations he would teach me through my life, and I don't think he was even trying.  
He will truly be missed by me and my entire family. He was one of a kind!
My deepest sympathy to Jeff, John and Jen and families.  May his memories carry you through this difficult time.