Two dozen reputed mobsters were found guilty of car bombings in 1993 that killed 10 people and damaged important buildings, including the well-known Uffizi Gallery in Florence. A three-judge panel in the Tuscan city sentenced 14 of the 26 defendants to life in prison, the maximum penalty in Italy. Among those were two alleged "Cosa Nostra" bosses. Two defendants were acquitted. The bombings were allegedly carried out to avenge the January 1993 arrest of Salvatore "Toto" Riina, the reputed "boss of bosses."