Months earlier, he had drawn the attention of authorities due to a number of violent altercations, and had been forced into a psychiatric care a month before the attack, as he stopped a random car in the street and sat in it.[8] However, he was discharged a day later as no traces of mental illness were found.[9] His last violent incident before the mass stabbing was in January 2021, when he threatened an asylum centre's staff member with a knife.