To "An observer" above - Your statements are incorrect. I was not that person in the park that day but I do carry a self-defense weapon. The right of self-defense is a fundamental human right that comes before anything else. The right of self-defense (according to U.S. law) is the right for civilians acting on their own behalf to engage in a level of violence, called reasonable force or defensive force, for the sake of defending one's own life OR the lives of others.
Obviously you have never been a victim of a crime that required you to defend yourself nor have you ever witnessed a potentially life-threatening assault on a victim(s) of such a crime. If you had been exposed to such an event you would not write what you did above. JC Citizen