STORY COUNTY, Iowa — [KCCI] – A Story County high school student has been charged with a felony after school leaders found a loaded firearm in his vehicle on school grounds. The Story County Sheriff’s Office said it took 17-year-old Mason McKinney of Zearing into custody, on Wednesday.

McKinney is a student at Colo-NESCO Senior High School. School leaders were tipped off by a social media post from an account belonging to McKinney about him bringing a gun to school. McKinney is charged with carrying weapons on school grounds, a Class D felony.

According to the criminal complaint, before turning his phone over to law enforcement, Zearing sent a text to his mother saying, “Pls just say you had the gun in the car. I found it.”