Shane Krutchen is an undefeated MMA fighter.
He's also a former Marine whose unit, 3rd Battalion, 5th Marines, spearheaded the invasion into Iraq.
The unit saw some of the heaviest fighting of the war. Krutchen came back damaged and, due to then-limited infrastructure to deal with PTSD, fell through the cracks and into the world of drugs.
Until he started to fight.
"It's almost like my rebirth," says Krutchen.
"I haven't fought in a year, but I feel better than I ever have."
"I just keep coming back, and they never understood why."
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