Journey to truth

Pat Tillman joined the military after 9-11 and became a hero after he was killed in Afghanistan. What the family didn't know until several months later is Tillman had been killed by friendly fire. A new book chronicles the family's journey to find the truth.

Guests

• Mary Tillman: the mother of Pat Tillman and co-author of the new book, "Boots on the Ground by Dusk: My Tribute to Pat Tillman."

Resources

• Pat Tillman Foundation