Meth unfortuantely is a world wide problem.
I'm in the thick of the battle here in NZ and it's an insidious dangerous drug both to the user and the wider community.
I HATE METH and METH-HEADS. No surer form of darwinism in action.

Meth is horrible stuff! My neihbors oldest Daughter got hooked on it at the age of 22, she was a good looking young lady and was about 5' 8" tall and proly about 130lbs, had a great bubbly personality. But, in three months she went from what I described, to haveing almost no teeth and weighing 97 pounds, she died from an over dose just 8 months ago. She was a good friend of my oldest Daughter and I am thankful every day my Daughter did not choose the path her friend chose.
To bad about the girl in yer story, but I would not judge to harshly, she may be a great person to know as was my neihbors girl.