A lone Italian gunman wounded six African immigrants in a two-hour drive-by shooting spree Saturday in a small Italian city where just days earlier a Nigerian man was arrested in the gruesome killing of a teenager, officials said. The shooting suspect was identified as Luca Traini, a 28-year-old Italian with no previous record. Traini had run on a list for the anti-migrant Northern League party in a local election last year in the town of Corridonia, but the party lost. The news agency ANSA quoted friends as saying he had previously been affiliated with Italian extremist parties like the neo-fascist...