attack. several weeks ago in north carolina 16-year-old hunter trestle was trying to rinse sand off his body before heading home that is when a shark attack him, taking off his left arm, his writing arm, below the shoulder he spoke to anderson cooper about what happened. you weren't swimming or anything, you weighed into the water? >> i krawched down getting sand off. >> when was the first time you realized something was near you or going on? >> right, i took one more step forward and i felt something big move against my ankles and the calves i was like i'm getting out of here. >> you felt it under water. >> i'm like i'm out and i started backing off and it grabbed my arm. i think my hand was still in the water a little bit and grabbed that and climbed its way up. >> it jumped out of the water. >> it was out of the water and i looked down. >> you looked down and saw the