How do you know that?
A 20 year old finds his way to the "black market"?
Really ....
Do you have a link?
So, you cannot comprehend what you read, as well as not think critically.
Good information to have.
When you ask "How could someone do X" and someone gives one of many possible answers, an adult with reading comprehension says, "Oh, okay. So is that the only way he could have purchased an AK47?"
Instead, you want a link to someone elses opinion as a means to further your poor premise.
I'll give you a hint. I express My thoughts and opinions. Not others. So, you won't be getting a link about how someone can get a black market item.
Proper thinking will tell you that people get drugs on the black market on a daily basis, often AT schools that ARE drug free zones.
Now, do you care to give Me the real definition of a 'responsible gun owner', or are you stumped on that one too?