That's really sad to hear. My condolences to you; your family: & your Dad's friends at this really difficult time. Take it steady in the coming days & weeks.
I used to work with him when he was at Roedean...really nice guy and we used to have some good chats about the Albion and Arsenal ( his other team ). To say all of us at Roedean are gobsmacked to hear that news is an understatement !