Reputed Mafia "boss of bosses" Salvatore "Toto" Riina is seen behind bars, during a trial in this Rome April 29, 1993 photo. Riina was hospitalized in the Teramo Hospital Coronary unit, central Italy, Saturday May 17, 2003 after he suffered a heart attack in the Ascoli Piceno high security prison Friday May 16. Reports said Saturday Riina's conditions are serious and that he was undergoing an angioplasty operation. Long considered the head of the Italian Mob, Riina was serving multiple life sentences. (AP Photo/Giulio Broglio)