If I remember correctly the case being referred to, the Japanese excange student charged at the homeowner while pretending to attack him. This is because he did not realize he had the wrong house for the costume party. He thought the homeower's gun was part of a costume. The homeowner yelled "Freeze" and only shot after the exchange student ignored his words and kept "attacking".
Actually, it doesn't matter what the homeowner thought, he went out to shoot the kid because his wife asked him to, and all married men know about that one. She knew Louisiana law regarding folks on your porch is decidedly UNFRIENDLY! We can only imagine what she did to him after he screwed it all up and caused her public embarrassment.