Greg McKendry was a hero. He was the unarmed member of the Tennessee Valley Unitarian Universalist Church who stood up and protected fellow members from the creature who came to kill. Apparently he was the first to resist, shortly followed by others who tackled the creature and kept him from killing more.
I don't know much about Mr. McKendry, don't know how he lived his life. Based on his last seconds, I strongly suspect honorably. The world would be a better place with more like him, and it is a poorer world without.