Hazmat teams detected traces of freon on at least three of the building's upper floors.
A longtime engineer at Washington Hospital Center died after being overcome by fumes while responding to a freon leak on the hospital's campus Sunday afternoon.
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Cop Cruiser Crashes happen more often than you think in the Washington area. Are officers being held accountable? And should you be paying the price? The I-Team investigates TONIGHT on ABC7 News at 11 after "Castle."