On 3 February 2018, in the city of Macerata, Marche, 28-year-old local Luca Traini, driving a black Alfa Romeo 147 and armed with a 9mm Glock 17 Gen3 semi-automatic pistol, seriously wounded, in a drive-by shooting, six African migrants.

[3] Traini said the attack was revenge for the murder of Pamela Mastropietro, an 18-year-old local girl whose dismembered body had been found a few days earlier, stuffed into two suitcases and dumped in the countryside.

[6] Salvini responded to critics by accusing the centre-left coalition government of responsibility for Mastropietro's death for allowing migrants to stay in the country and having "blood on their hands", asserting the blame lies with those who "fill us with illegal immigrants".

[8] During the 2019 Christchurch mosque shootings at Al Noor Mosque and Linwood Islamic Centre in Christchurch, New Zealand, Traini's name was written on one of the weapon magazines of the perpetrator, Australian Brenton Harrison Tarrant, alongside other far-right mass murderers and killers in addition to historical figures and battles.

[10] The Prosecutor's Office of Macerata formulated against Traini the accusation of massacre aggravated by the purpose of racism, in addition to other crimes, including unlawful carrying of firearms.