That guy has serious issues. It's fine to kill deer, I do every year, but like that? Those two doe he hit at the end of the second video only had their back halves taken out. I tend to believe if you're going to kill something, do it quick and humanely, not with their hams blown off by a truck. Seems unethical to me.
It's pretty comical the way he justified it though, saying he was saving lives and that the insurance companies should pay him and give him a truck. I'd like to meet that guy.