Shane Niemeyer's life was not headed in the right direction.  He committed crimes and used drugs and spent time in jail and prison.  He tried suicide.  While in prison he read an article about Dave Scott and triathlon became his new passion.

In his first year after release he did a half ironman and a full Ironman. In 2013 he recorded his fastest ever Ironman, going 9:14 and finishing 20th and Ironman Texas.

This is his story.

https://www.youtube.com/watch?v=FgprFfxQHIU

 

http://trueambitions.com/

His book, The Hurt Artist, details his story.