The shooting was over by the time the police arrived.  Everyone would have had their concealed weapons, I guess, concealed.  The police typically have cleanup duty in circumstances like this.  If you are just going to make up situations, please make them up with some semblance of reality.

Purchasing a firearm is harder than getting a drivers license.  To get a drivers license, I had to prove that I was at least 14, complete a test by looking up answers in a book, read an eye chart, and prove that I could drive a short distance without breaking any major laws.  The last time I purchased a gun, I had to have a drivers license, prove that I was over 18, prove where I lived, fill out a form as to whether I was able to purchase a gun within the law under threat of 10 years in prison, and have a background check.  Besides, I live in a country in which I have a Constitutional right to own and operate firearms but do not have a Constitutional right to operate motor vehicles. 

My 14 year old son has a drivers license, but can not purchase a firearm yet.  I am more afraid when I am riding in a vehicle with him than when we are out shooting his WASR-10 (AK-47 lookalike), even when has an evil 30 round magazine installed and is he shooting it as fast as a semi-automatic firearm can be made to fire.