J.R. Martinez Opens Up about His Burn Injury on 'Dr. Drew's Lifechangers'

Veteran J.R. Martinez made an emotional appearance on "Dr. Drew's Lifechangers" and talked about his combat injury in Iraq, which left 40% of his body badly burned. Along with fellow burn survivor Jenna Bullen, J.R. reveals what gave him his newfound purpose in life.

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Video! J.R. Martinez Reaches Out to Burn Survivors in New PSA

Check out J.R.'s inspirational story and personal life changes on "Dr. Drew's Lifechangers" Tuesday, October 18 at 3:00PM on The CW.