premise: Sicilian Mafia boss Salvatore Lo Piccolo, considered to be one of the successors of the former "boss of bosses" Bernardo Provenzano (arrested in April 2006), was arrested at 9:30 a.m. CET (UTC+1) in a villa in Giardinello, between Cinisi and Terrasini on Sicily. He had been on the run since 1983. His son Sandro Lo Piccolo and two other top mafiosi, Gaspare Pulizzi and Andrea Adamo, were arrested as well. All four men were among Italy's top 30 most wanted Mafia suspects, according to police officials.
hypothesis: Salvatore Lo Piccolo is involved with the Mafia.