Multiple shootings Aurora, CO movie theater. warning, bullet wound photo.

[QueenBee]

6000 rounds of ammo? WTF. How was he able to buy all this through the mail, and get it delivered to a private address with no red flags, bells or whistles going off?
Maybe I am wrong, but wasn't the Brady Bill supposed to increase background checks for firearms? Don't they check for a Mental illness background? His Dad even said he was nuts.