On June 28, only two days after the Supreme Court announced its 5-4 ruling that Washington, D.C., citizens have the right to bear arms under the Second Amendment to the Constitution, I found myself standing in a pool of blood in York, from a man I had just shot. It was not my intent that evening to test the Second Amendment or kill somebody, but events unfolded to make it necessary for me to draw my weapon to defend myself and others.

My fiancée Maria and I had spent the day showing real estate investors our investment properties in York. We were driving to nearby Hanover to visit my mother when we came across what looked like a rear-end traffic accident.

Instead, a man, Douglas Need, had been driving recklessly when he swerved in front of a car and was hit in the rear. In a fit of road rage, he stormed out of his car, went back to two young women and a baby in the car that hit his, reached through the driver's window and started beating the driver very violently. She was able to break free and drive her car to the only place she could go -- the parking lot next to the street. Need ran back to his car, squealed his tires into the parking lot and looked as though he was going to broadside the women's car with them still inside.

At the last moment, he swerved his car around and blocked hers from going anywhere. I pulled into the parking lot, got out of the car and yelled at Need to leave the women alone while Need's passenger was in the parking lot. My gun was still holstered by my side. The woman got out of her car and escaped into the store. He followed but only moments later exited the store back into the parking lot. Both Need and the man with him were uncontrollably enraged and seemed deranged past the point of caring who they hurt.

As they continued to threaten that they had guns and were going to kill people, for some unknown reason Need ran to the driver's side door of my car and started pounding on the window, shouting at my fiancée who was inside the car with the engine running. Fearing that Maria's life was in danger because of his previous death threats, that's when I drew my weapon. I ordered Need to step away from my car, which he did. He then returned to the center of the parking lot, according to witnesses, and continued with threats and deranged behavior.

I went to my car and stood at the driver's side door. Need turned back to me and started coming at me with his arms waving and shouting "just shoot me." I ordered him to stay back, but he kept coming. Then, when he was about four or five feet from me, he put his hand into his pants pocket, and that is when I fired my first shot into his left thigh. It didn't stop him from coming at me. He grabbed my shirt, ripped off the top button and grabbed my right arm. That's when I shot him the second time point-blank into his thigh. I was told later that the bullets had severed his femoral artery and he had bled to death at York Hospital. I was truly sorry he died, but knew I had made the right decisions.