The CIA Heart Attack Gun is a weapon that was revealed in 1975 to the public. The gun is electrically powered by a battery and fires an extremely small bullet of ice with frozen shellfish toxin in the center. Once fired the bullet enters the target and melts without a trace except for a small red mark on the victim from where the bullet entered. The victim will feel a small pinch or nothing at all. The gun was designed for assassinations that need to be kept secret.
How many people in fights with government agencies have died from heart attacks?