Valley man running P.F. Chang's Rock 'n' Roll Marathon for a great cause

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PHOENIX -- The P.F. Chang's Rock 'n' Roll Marathon is coming up on Sunday. From professional runners to those just out to have fun, people from all over the world will be descending on the Valley for the big event. Many of those who will lace it up are doing so for a cause. Nate Thompson is one of them.