Now, as far as judging people goes, doing something stupid doesn't equate to mental illness. You didn't call the teenaged girl stupid (subjective opinion) for having shot three deer, you called her sick (objective statement), which is a judgment on her character and mental health. I called the guy in Dallas stupid because I believe in my subjective opinion that what he did was stupid. Anyone who walks his or her dog, while unarmed, at 3:30 in the morning in a major US city like Dallas is stupid. The guy in the article may be the epitome of mental health and he may be a good man, but he was stupid for having done what he did. So once again, your argument is comparing apples and oranges.
As for the rest of the article, so what if the way hunters talk offends your tender sensibilities? You obviously don't understand the American hunting culture, hunting laws, or hunters themselves. It goes without saying that when a hunter takes a deer, elk, moose, antelope, etc, he has the meat processed and eats it, or donates it to a local charity, where it's processed and eaten. Why? For one reason, because it's against the law not to! But I bet you didn't know that, either, did you?
Since you're evidently not from this country and definitely don't know anything about our hunting traditions, I'll invite you once again to stop embarrassing yourself and bow out of the conversation gracefully. A bit of friendly advice? In the future, when you feel like opining about things you don't fully understand, don't.
Scouts Out! Cavalry Ho!