Seriously...
First, this source needs to read up and get the story straight.
He wasnt living at home, but he also wasnt living in a group home. He didnt hand his 'mother' a note, he left a note behind and called the person he was staying with, told her where it was, and hung up.
And really, are you going to pay the taxes to allow your city to hire enough police to patrol every mall, store, etc. To pat down every person as they enter...