I was watching the news report on this. I've lived on a farm my whole life, so watching the news anchors trying to seem knowledgeable and informed about cattle was highly amusing. Also, having stared down 1000+ pound animals before, great shot. I know from personal experience that an angry cow/bull/heifer/steer (any large bovine, in other words, regardless of gender) is very difficult to kill. Bravo to the Trooper for keeping his cool.