Looks like the top he cut off came down on his tag line and pulled the tree away from him until the rope snapped. Ouch!
Ah, that makes sense. I know nothing about climbing a tree with a saw. I have climbed plenty of trees in my day, but never with a chainsaw.
Sorry,I tried to post a Facebook video of some idiot,that I couldn't find on YouTube. All that showed up was computer code & other jibberish that I know nothing about,so I deleted my post.