"the fireman" porco. >> frankie porco was serving time in federal prison for loan-sharking. were rumors that frankie porco would provide state's evidence and information in return for a lighter sentence. >> it was what they call a signature killing, you know, that the mob would do, and it was a fireman's ax because it was retaliation for frankie the fireman. >> but a background check on frankie the fireman put doubt on this theory. >> he was in prison because he wasn't a snitch. and he had been made offers to cooperate with authorities to avoid prison, and he didn't, so he ended up in prison. >> then investigators learned that peter and joan porco had life insurance policies totaling $1 million. investigators also learned that christopher porco asked for investment advice before the murder. >> christopher had gone to a financial counselor and asked him to write up a portfolio for him. he had told him he was receiving millions of dollars from a relative. >> and before his father's death, christopher e-mailed him asking for all sorts of personal financial information. >> "yo,

. >> the relative is frankie "the fireman" porco. >> the press says the police can't solve it. >> everye news talking about they've botched this investigation, they can't do anything right. >> but the police are one step ahead of the press and the killer. ♪ >>> working for the supreme court of new york state is a prestigious job.