Three men were shot to death in a marketing company's conference room and another was critically injured by a gunman who killed himself as police closed in, authorities said.
Police found a scene of "utter chaos" Monday night at the offices of Zigzag Net Inc., city police Deputy Commissioner Richard Ross said.
Two victims were on the floor and another was in a chair, all with "wounds to various parts of the body," Ross said. He said two other men had been bound with duct tape but not attacked. One of those men told officers the gunman had shot himself after exchanging fire with police officers, Ross said.
"The officer mentioned to me that he had to take a knife out to cut this person loose," Ross said. None of the police officers was hurt.
Police identified the victims as Robert Norris, 41, of Newark, Delaware; Mark Norris, 46, of Piles Grove, New Jersey; and James Reif, 42, of Endicott, New York. The injured victim, whose name was not released, was taken to Thomas Jefferson Hospital, where he was listed in critical condition Tuesday morning.
Zigzag's Web site lists Mark Norris as president and CEO. Mark Norris and Robert Norris are brothers, said Aaron Haydn McLean, Zigzag's senior art director, but McLean said he had not been told that the company CEO was among the dead.
Reif worked with another company, Watson International, McLean said. Watson International's Web site lists a Robert Norris as vice president of business development. A phone number listed on the Web site was disconnected.
Zigzag has about 15 employees, said McLean, who has worked there for about five years.
The gunman's role in the company was not immediately clear, but Ross said police believed he might have been an investor.
It was one of the Navy's busiest shipbuilders during World War II but closed in 1995. Two years later, a private company, Kvaerner, resumed commercial shipbuilding in a portion of the shipyard, which is now known as Aker Shipyard. Other areas of the Navy facility have been converted to business and office use.