I'm very sorry to hear about the loss of your friend, it is very painful and only time will lessen the loss of your friend to you and his family. In time your dreams of him will bring a smile instead of a tear. I remember not long after my Father passed away some six years ago now, I had a bit of a strange dream about my Dad. My friends and I were entered in the Vegas to Reno race (a 520 mile off road race over here in Nevada, of which I've only dreamed of participating in) and I was waiting at a Pit to take over for one of stints, and I was waiting for my Dad to get there so I could spend a few minutes with him before I had to go. I was getting pretty nervous because the time was growing short, and my Dad was still not there. But, at the last minute my Dad showed up as I was getting ready to go, he just smiled and waved at me in my dream, and I jumped on the bike and I was off, and woke up. That dream was very comforting to me and I hope that you have a similar experience.
At least if it was his time to go, he got to go doing something that he liked, all of us should be so lucky.
My heartfelt condolences to you and his friends,