Willy Duarte Monteiro's murder demonstration in Rome

Demonstrators holds a banner with "Justice for Willy" write on in in italian. The 21-year-old was killed during a fight in Colleferro, a city on the outskirts of Rome, in the early hours of 6 September. Although four Italians have so far been arrested - including a pair of brothers with police records - prosecutors have not yet indicated if the murder was racially motivated.