He was tried in absentia and acquitted of all charges laid against him at the trial which took place after the First Mafia War at Bari on June 11 , 1969 . On December 10 , 1969 , Bagarella was killed in an attack on Mafia boss Michele Cavataio , the boss of the Acquasanta quarter in the Viale Lazio in Palermo , known as the Viale Lazio massacre . He was part of a Mafia hit-squad consisting of Bernardo Provenzano , Emanuele D’Agostino of Stefano Bontade ’s Santa Maria di Gesù Family and Damiano Caruso a soldier of Giuseppe Di Cristina , the Mafia boss of Riesi . After Bagarella 's death , his younger brother Leoluca became one of the most famous and ruthless killers in Sicily
Viale Lazio massacre
Viale Lazio massacre
Calogero Bagarella