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FORT WORTH (AP) – Fort Worth police say a U.S. postal worker faces an aggravated assault charge after bringing a gun to work and ordering co-workers to the ground.

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Police tell the Fort Worth Star-Telegram that 27-year-old Jason Silmon entered the post office Monday morning armed with a handgun.

Cpl. Tracey Knight, a police spokeswoman, says Silmon then instructed other employees to get on the ground. She says about 11 people working at the time complied. She says that after a few minutes, he put the gun down and waited for police.

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He was in the process of getting booked into jail Monday afternoon. Attorney information was not immediately available. Silmon’s father, Robert Silmon, says his son is not a violent person.

Knight says police are trying to determine what prompted the incident.

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