Dave, thank you for letting me know in person about Boris
As you know, I felt for him during his illness and I know he fought "the good fight" to get better, over the last few years. I am very sad to hear of his passing. He was a great person and I feel very lucky to have met and spent time with him in SIN on several occasions (along with his lovely family).
As I reflect on things, I remembered how we often joked about me sharing my "DG Karma" with him and his family to get upgrades cleared...I think it even worked on a couple of occasions

and there was the time that I got him on the case to get all your friends to sign your FT Birthday thread as a surprise a few years back...that was fun too.
My thoughts are with you and his family at this very sad time
I hope he is at peace now.
Take good care of yourself, my friend.