It began in a courtroom. Mario Rapelli was accusedof " assault with intent to main." There were three witnesses for the defense, two for the prosecution, bit players in a petty, cruel drama. But then one of the defense witness began to talk, about bribery and perjury. Plunging in deeper, chipping away at Rapelli's alibi, Roger West began to piece together the whole picture, much more terrifying than the sum of its deadly parts.