Traffic Enforcement Deputy Nick Pham was in a festive mood Wednesday, talking about holiday plans with co-workers at lunchtime before getting into his unmarked Monroe County Sheriff's Office car to patrol the Florida Keys' roads.
At 12:20 p.m., Pham, 38, died in a collision with a tractor-trailer while apparently making a U-turn to chase a vehicle violating a traffic law, according to witnesses and the Florida Highway Patrol.
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