I just watched this youtube documentary about Jon Koppenhaver aka War Machine and the guy who put it together did a really professional job breaking the story down starting from Koppenhaver's past, his MMA career and Christy Mack's relationship with him.
https://www.youtube.com/watch?v=j3PLLOreTLY
The things he did to Christy Mack throughout their relationship are horrible and sickening. Mack's mother said it best: "The incidents I saw, I really wish I would've shot you." Her eyes when she made that statement and throughout the trail were soul piercing!