While I'm pretty pissed about what those degenerates did, they in no way deserve to be shot. Marcus clearly did the right thing in his restraint. I hope that those of you that carry/own guns do not really think that shooting someone over a dog is appropriate.
Protecting property. It's a right to use deadly force to protect your property in some states, Texas is one of those states IIRC. AND how would you know they were shooting at your dog? Makes what these idiots did look even stooopider. To turn the tables, how stupid is it to risk losing your ass over a dog? You gonna sell it after you shoot it?