Probably hit the brachial artery. Just like the femoral artery in the leg if it is cut you can bleed out in a matter of seconds.
Unlike the femoral artery in a thigh you can’t put a tourniquet on a shoulder.
19 posted on 08/18/2019 12:49:24 AM PDT by Pontiac
(The welfare state must fail because it is contrary to human nature and diminishes the human spirit)