I'm so sad at this news. I remember what you wrote in your own web site about this friend.
We can say life is a passage, time is fleeting, we are all transients. At my age (71), I'm preparing myself for what will likely happen in the next short period (I hope for more time and not less time, but we never know).
Thirty-three years is too young to have one's life cut short. It's such a loss.
Print the photos, sign them on the back. Me, I would hold on to those images of your friend, for now. Maybe in future the family will want them, in fact I'm sure they will.
You could make a large montage of the three images, mount it on one of your walls,and live with it for a while (time frame to be set by you). When you feel you are ready, make prints for others.
Consider also a small album of your best images of this young man. You can do work on this at leisure, over the next year or however long time you need, to lessen your grief.
I am doing this as an ongoing series of small albums with at most 24 images and a brief written introduction, Each album to honor a period in my life, a family member, a friend, or one of our beloved cats who have meant so much to us as a no-child family.