CNN New Day Sunday June 23, 2013 10:25:00
Tonight, daredevil nik wallenda will try to become the first man to tight rope walk -- try to say that three times -- tight rope walk across the grand canyon without a safety harness. last summer he crossed the niagara fathers wearing a tether. wallenda is the great grandson of carl wallenda, a famous acrobat who plunged to his death. four other family members have died while performing. wallenda says they're his inspiration. >> when you're walking at a height greater than the empire state building, it can play tricks on your mind, so it's important that i'm always in control of those thoughts...