To most of us Justin Wren probably elicits a reaction of either "Who?" or of "Oh yeah that guy from TUF 10, whatever happened to him?" Well over the last couple of years among other things Wren has gone through a few things from having a one fight stint in the UFC to then having to overcome drink and drug abuse. Following this he went into the jungles of the Congo on a mission to spread aid and was successful in freeing a number of Pygmy slaves. Now he's planning to return for a whole year to continue his work and is hoping to free up to 1000 slaves.
If you wish to you can donate here:
Here's a video of him from his last trip: http://www.youtube.com/watch?v=ide5YjD6AhI
and here is the Reddit of him giving more information about what he's doing.