Complex sentence: Arrested once more in 1983, Buscetta was sent back to Italy, where he attempted suicide, and when that failed he decided that he was utterly disillusioned with the Mafia.
Split into simpler sentences: Arrested once more in 1983, Buscetta was sent back to Italy. He attempted suicide, and when that failed, he decided that he was utterly disillusioned with the Mafia.