Powerful Washington Post article by Rick Maese on the life of freestyle aerialist Jeret "Speedy" Peterson.  Depression is a bad thing:  http://www.washingtonpost.com/sf/sports/wp/2014/01/03/the-last-flight-of-speedy-peterson/

It was sad to read, it sounds like he had a lot of unfortunate incidents during his life, more than his share anyway.