school stabbing

Awful news about the female teacher that was stabbed in a secondary school today. It seems that in the UK, teachers are in the terrible position of not having the backing of parents when disciplining children.  Parents these days(I sound so old) are so defensive and protective of their children, that teachers can not do their job properly.. This story is incredibly sad, this child has ruined his life, his families lives, the teachers life and family and what for?