Sincere condolences, Andy.

Not to speculate on the incident, just an observation - while I like going solo, I never do any major hiking without a buddy I trust. With my life if need be, and it goes the other way around as well. Once out in the bush, I'm responsible for my own safety and the safety of my buddies. If anything happens to them I'll make sure to help as much as I can. If anything happens to me I'll try to take care of myself. I will also appreciate the assistance of my buddies, who I know will do their best. Any outside help (PLB, cellphone, air cav...) is really a bonus but something you can't rely on, especially if split-second decisions have to be made.

There are a few good lessons to be learned from the military. No matter how easy the trip may seem, make sure everyone knows where everybody else is at all times and where their gear is located.

I happen to be the point man on hiking trips most of the time so I carry most of the critical navigation gear on my person. Map, compass, GPS. I make sure my companion(s) always know where I keep that stuff and also where I carry my FAK, emergency supplies and survival kit. I pack my gear the same way every time. Important tools like my belt knife and axe are always within easy reach. Should anything serious happen, it's critical to be able to get to your stuff immediately.

Also, in a larger group, apart from the point man the greatest responsibility lies with the last person in column. Do not under any circumstances let anyone wander off or stay behind. If anyone is in trouble, stop right there and assess the situation. It's plain common sense but that's not always in abundant supply on the trail, especially when ego gets in the way (happens to everyone, myself included).