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KATY, Texas -- The student accused of bringing a zip gun to Seven Lakes High School in Katy made his first appearance in front of a judge Tuesday morning.

Bond for Thomas Scott Barfield was set at $20,000. The 19-year-old has been charged with possession of a prohibited weapon.

According to the district officials, a zip gun is any device altered to propel an object designed to cause harm. Devices like this are often made with a pipe and can fire nails.

The school was evacuated around 10:15 a.m. Monday after the Katy ISD Police Department learned of a perceived threat on campus. The students were immediately led to the football and baseball field for their safety while the FBI, the Harris County Sheriff s Office and the Houston Police Department s bomb squad joined in the investigation.

The device was located around 11 a.m and investigators said they found another weapon in the trunk of the car that Thomas Scott Barfield drove to school.

He was kinda a pyrotechnic if you know what that is. He liked to make things with fire and all that, Josh Rubin, a senior, said of the suspect. He is honestly a nice person if you just talk to him, but he would be a person I would expect would do something like this.

After an early dismissal on Monday, classes resumed their normal schedule Tuesday.

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