So these armed muggers tried to hold up a tour bus full of US seniors in a rough neighborhood in Costa Rica. The worldly travelers chased off two of them, while one 70-year-old retired serviceman put the third in a headlock and "broke his clavicle", killing him. Killing him!
The clavicle is your collarbone! The thing you broke when you fell off your bike as kid. The thing they don't even do anything about, 'cause you can't put a cast on it. How does it kill you? That clavicle must have found its way into something quite vital.
That must've been a hell of a headlock.