L’omicidio dell’informatrice farmaceutica, madre di uno dei suoi due figli, avvenne nel pomeriggio del 27 giugno 2012 nell’atrio di un palazzo di via Marconi a Legnano. Il giudice ha depositato le motivazioni della condanna dell’oculista che uccise Stefania Cancelliere a colpi di mattarello nel giugno del 2012
Pubblicato il 15 febbraio 2016 – Varese News – di Orlando Mastrillo
He wasn't in a trance, he wasn't incapable of understanding or wanting but he acted with unusual violence and did not stop even in the face of the woman's screams and the presence of eyewitness texts ordering him to stop.
The murder of the pharmaceutical informant, mother of one of his two children, took place on the afternoon of 27 June 2012 in the atrium of a building in via Marconi in Legnano. Dozens of rolling pin hits on the head reduced the woman to death and a few hours later 
The story also caused a stir at a national level and was also investigated by one episode of Presa Diretta from 2013. To the statements of Livio Chancellor, brother of the victim, Colombo answered from the room of the nursing home in Liguria where he was serving pre-trial detention with a video posted on Youtube which you can find here. A story on which the judicial authority is still investigating.
Related news: In a diary the harassment of the ex. Stefania Cancelliere was afraid