Gotta side with the family on this one. The only problem was the sign she had around her next that said "Hi, I'm the mentally depressed asshole that tried to kill you with my car! Please don't shoot me if I assume a shooters stance. 
Love, Hannah The manically depressed psychotic that tried to kill you!
“heir attorney told the media that the shooting highlights the need for the nation to do a better job in dealing with people affected by mental illness.”
Sounds to me like the parents should have done a better job of dealing with their kid.