 DiNapoli secretly owned Cambridge Drywall and Inner-City Drywall, which became one of the biggest developers in Harlem and the South Bronx, and received $32 million in city contracts in 1988 alone.In the early 1980s, DiNapoli became enraged when he lost out on a contractor who made a deal with Gambino boss Paul Castellano; the contractor, Frederick DeMatteis became one of Long Island's biggest developers.A conversation between members of the Concrete Club indicated that Castellano prevailed and kept DeMatteis as his partner