Napoli's Serie A title celebrations marred by tragedy.

The son of an alleged mafia boss was shot dead during celebrations in Naples after the city's football team won its first Serie A title in 33 years. Vincenzo Costanzo, who had a "significant" criminal record, was killed during the spontaneous street partying that took place across the city. Three other people were injured during the incident. Prosecutors and police are investigating whether he was intentionally killed by a rival clan or if the gunshots were accidental. Over a hundred people were injured during the celebrations, including people with hand and arm injuries from fireworks, knife wounds, and injuries from numerous brawls.