T.F.
It was very scary for me to read this post today because I have a niece going to a Pittsburgh high school. We know it is not Murraysville because they live Sewickley. It sure has been scary to read about it though.
This makes me glad my daughter is out of school now and in college, however, the same thing could happen at a college.... we've seen that too.
I just pray and trust for the safety of my daughter and other children.