Sara Campiglio blamed the failure on the 17 year old arrested yesterday for having stabbed the teacher of the Enaip training center in Varese, responsible for the fragility area.
She appears from the investigations of the Varese Flying Squad investigators.
According to the Juvenile Prosecutor's Office, the attack was premeditated but apparently occurred in a solitary manner, without the student having mentioned her intentions to anyone.
Her social networks and her cell phone are analyzed but, at the moment, no trace of confidential messages revealing her intentions.
The reason, therefore, is to be found in the failure in the third year.
The 17-year-old is accused of premeditation, also deduced from the fact that he brought the knife from home.
You then dispute the aggravating circumstances of frivolous motives and of having acted against a public official in the exercise of his functions.
The request to validate the arrest was presented today to the investigating judge by the Juvenile Prosecutor's Office directed by the acting Luisa Russo.
The hearing has not yet been scheduled.
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