By DAN ROBRISH, Associated Press Writer 2 hours, 41 minutes ago
A business meeting turned deadly when a gunman apparently angry over money killed three men and critically injured a fourth before exchanging gunfire with police and then killing himself, police said.
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Police were not immediately sure what the name of the business was but it was believed to be an investment firm, Ross said.
The gunman's role in the company was not immediately clear, but Ross said police believed he might have been an investor.
The shootings took place in the Philadelphia Naval Business Center, an office park that is part of the old Philadelphia Navy Yard.
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.