First....THOUGHTS, PRAYERS, AND CONDOLENCES to this kids friends and relatives. Second.....it appears a simple friction saver prussik (or some kind of second tie in like Daniel mentioned) may very well have saved him. BAD JUDGEMENT somewhere along the line seems to be the cause of most accidents and on this one the employer should know that the climber should have 2 tie ins and make sure the climber regardless of age should use them.....that said some employees refuse to follow regulations so I don't want to finger point. I have video documentation of my son at age 2 pointing out all the parts of a saw including kickback zone, pushing chain, pulling etc etc. with continuous training I let him limb our dying pine (now age 12) he's not ready to dump tops out at 50 ft though but kids take to things at different aptitude levels. I know several arbos who were on jobs as children.......but to learn.....not do the nasty climbing! (I was on jobs at age 3......never in the drop zone though. Still remember: some of the things I learned, funny stories, and Dads crew never had any accidents.) I THINK HIS AGE WAS NOT THE CAUSE! Just my opinion.