are other theories about what happened and who was responsible but it led to gravano being indicted.ies. all of a sudden. amazing. >> richard kuklinski died march 5th, 2006 of a heart attack. >> allegations maybe he was poisoned. payback is a pitch if he it was. >> without his testimony the case doesn't have a case against him and the charges against sammy were dropped. >> i don't believe richard kuklinski was involved in the involved in the killing of peter clabrow. >> [bleep]. the person he said he committed the crime with was a major witness in the federal case and if kuklinski had been believed that would have affect his credibility. >> we know that for sure he killed five people. we also assume that he was involved in numerous other homicides. >> was it possible it could have happened? >> absolutely. he's capable of doing things like that. >> what a vicious bloodthirsty non-caring and they i can person he was, cold blooded killer. >> richard kuklinski was and evil person, evil to the core. >> he did what he wanted when he wanted to whomever he wanted period end of story. >> he m