Depends on the state in which you reside. Some states, like Texas, you can chase the goblin down and shoot them.
Other states, like Virginia, you can't shoot if the goblin has turned to leave. Doesn't matter if he just killed your dog, raped your wife, and has you gun collection. If he is leaving the "danger is over" and you can do nothing.
And in some areas you can't even have a gun.
If he raped my wife, he's tired. If he has my gun collection he's moving REALLY slowly and if the @#$%^&* killed my dog I just take my time, go next door, borrow my buddy's sniper rifle and CAP that sucker by the time he gets to 500 meters!