I had to cover a shooting in which one man died and his twin brother taken to the hospital. This was the most tasteful way I found to photograph the scene. (The man in the picture is a firefighter who came to rinse blood from the ground.)
I like how you approached the subject. All too often now it seems "shock tactics" are the only way to do things, but it's really not. This shot, along with the story you told makes me feel a whole lot more than a picture of a blood splatter would.