ROWLETT, Texas (CBSDFW.COM) – A Garland teen is behind bars after Rowlett police officers found a Halloween mask, a rifle, and 100 rounds of ammunition in his vehicle.

mask found with teen (Rowlett Police)

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He was parked near the Rowlett Community Center and Rowlett High School.

When officers found 17-year-old Diego Horta sitting in a van – with weapons, ammo, and drugs, they wanted to know why.

Diego Horta (Rowlett Police)

“What’s the mask for?” Officers asked.

“Oh, just like Michael Myers,” replied Horta.

Police say his answers didn’t add up. Horta initially insisted he didn’t have weapons and lied about his age, saying he was 16, before saying, “I’m 17. I forgot I turned 17.”

Horta isn’t a student – or even a resident of Rowlett. He’s from Garland and is homeschooled.

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Detective Cruz Hernandez says there was a basketball game and a soccer game Tuesday night.

“His purpose for carrying the rifle at the city park, and so close to the high school, is still unknown,” says Hernandez.

“It does seem really suspicious. You never know,” says student Gavin Garcia.

Garcia says he is grateful officers spotted Horta.

“I feel pretty relieved, but then again, someone else might try and do it,” says Garcia.

“We feel confident that we had a better outcome than if he would have gone undetected,” says Detective Hernandez.”

Horta is currently charged with possession of a controlled substance, and unlawfully carrying a weapon in a weapon-free zone.

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