Teen Saves Brother's Life After Shark Attack in Bahamas

Jack Roll saw the dark shape in the water and thought nothing of it. The 16-year-old from Friendswood, Texas, figured it was just another nurse shark like the ones his family had been swimming near all day at a secluded Bahamas beach.

Then the reef shark clamped onto his 12-year-old brother Parker's leg.

Parker didn't feel it at first because of the adrenaline rush. When he looked down, he saw a head over a foot wide locked around his calf. He walked out of the water before collapsing as the pain hit him like a knife stabbing and twisting into his leg.

Jack was already in motion. The moment he saw the massive gash on Parker's shin, he knew exactly what to do.

Without hesitation, Jack tore off his swimsuit and tied it around his brother's bleeding leg as a makeshift tourniquet. Then he picked Parker up and carried him to the beach while their brother Adam sprinted up the hill screaming for the boat crew to bring a first aid kit.

The family was more than 60 miles offshore near Staniel Cay with no cell service and no radio contact. It took 45 agonizing minutes before they could reach anyone for help. The crew eventually carried Parker onto the boat for the long journey back to shore, where an ambulance was waiting.

Parker needed about 1,000 stitches and surgery to repair the damage. Though he's still using assistance to walk, doctors expect him to make a full recovery.

Why This Inspires: Parker knows the numbers. At the rate he was losing blood from his small body, the injury could have been fatal. "I just thought I was gonna die," he told Good Morning America. The shark could have easily taken his entire leg. Instead, his brother's quick thinking and immediate action stopped the bleeding and saved his life.

Jack's split-second decision to use his swimsuit as a tourniquet bought Parker the critical time he needed during those 45 minutes without medical help. Sometimes being a hero doesn't require training or preparation. It just requires love and the courage to act when it matters most.

Parker calls his brother his hero, and he's absolutely right.