Autopsies concluded that a mother, not her 14-year-old son, was responsible for the five deaths, which were first thought to be a result of an accidental house fire.
Representative Charles B. Rangel will face a public trial before the House ethics committee this fall, a potential embarrassment for Democrats during the election season.
That decision and a similar vote to approve a project at the old Domino Sugar refinery in Brooklyn gave new life to Mayor Michael R. Bloomberg’s development agenda.