GARLAND, Texas (CBSDFW.COM) – A theft at South Garland High School led to the discovery of a gun on campus.

School resource officers were told Kerry Guery, 19, was in possession of a stolen cell phone.

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Kerry Guery

When officers found Guery in the school, they recovered the cell phone but also found a handgun and marijuana in his backpack.

Guery was arrested for Unlawful Carrying of a Weapon – Prohibited Places and Possession of Marijuana in a Drug Free Zone.

He was also found to have two Dallas County warrants for theft.

The gun was not loaded and no ammunition was found.

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Guery is currently in the Garland Jail.

Garland ISD said in a statement:

We commend this student who made a report today and all who report suspicious behavior, ensuring the continued safety of all at our campuses.

Also Thursday, a 16-year-old student was arrested for bringing an unload gun to school at Flower Mound Marcus High School.

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And in Plano, a 16-year-old student was taken into custody after a pistol was found on him at Plano West Senior High School.