Calo probably volunteered to go on his suicide mission. He was so shaken by the murder of Don Tomassino that he would stop at nothing to take revenge, and gladly gave up his own life. I mean what kind of plan whereby you go up to a man who has an armed body guard in the room, whisper something in his ear and then rip off his glasses and stab him in the neck?
"Io sono stanco, sono imbigliato, and I wan't everyone here to know, there ain't gonna be no trouble from me..Don Corleone..Cicc' a port!"
"I stood in the courtroom like a fool."
"I am Constanza: Lord of the idiots."
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