[0:00]He was forced to say the pin code of his safe at gunpoint, but as the robber entered the code and opened the safe, a hidden string pulled the trigger, causing a gun to fire and kill the attacker instantly.
[0:10]You see, this safe had two main codes, one that opened it and another that triggered the gun. And no matter what they did, the robbers could never know if they had the right one.
