How we could get to that point?

Related to the accident thta takes places in a high school in Barcelona the las month, where a 13 years old boy, as a result of a psychotic break, has kill his teacher with a crossbow and has hurt some students, make you think about about the security in schools, the law system,... and also, in our society because, how we could get to that point?... 

First of all, this boy will not go to a under 18 center and even, he will not be judget becuse he is under the 14 years old. This fact for the family of the death teacher it's horrible: you know who has caused his murder but nothing can be done for punish him. Front my point of view, I think thta it's necessary a change of law, this boy can and have to be, as minimum, judtget. In the other hand, we have the causes that made the teenager commit this unbeliable crime andwith this, the securuty in the schools. I think it's not necesary start to have police officers in the educational centers, revise the bags of all the students and teacher or veen, start to wear bulletproof vest but maybe, could be a goodidea start to have metal detectors for increase the secutiry. 

Another thing thta has to be doneis start to promove some valors from home and from schoolsbecause if a teenager can have this kind of guns at home, it means thta something is wrong with our system or with the society. In my opinionm I believe thta one of the causes could be the violent video game. Nowadays, teenagers are exposed to this kind of video games where they can be part of a warm, kill as peple as they want,... and all of this and like we can see in this terrible case, mark and transmit valors thta can end in what happen in this school.