Sorry for your loss Fred. My dad passed away from not wearing a helmet. We rode ATVs and never thought he would get a head injury because he didn't ride crazy like me. I wore a helmet. He was going to buy a helmet the next time we was in town ... we talked about it....but he never made it.
Sorry for your loss, you to Bull, been there a few times, it sucks, but over time it gets better, but different, I don't know how to explain it better.