This is very, very sad news.

I was talking shop with him a few weeks ago and then sent him a PM that said, "I know you're on vacation now and hope you're enjoying the cruise. Contact me when you're back." I wanted to pick up our conversation from where we left off.

Just goes to show how precious and unpredictable life really is. He was a good friend and will be greatly missed.

This is unbelievable.