School officials are crediting a Johnston Middle School student with stopping a 15-year-old Union County boy from selling a gun.
Johnston School District spokeswoman Laura Dillavou says the Johnston student reported the boy after receiving text messages from him about selling a gun. The teen, who attends East Union High School in Afton, was arrested Jan. 9 on weapons and other charges.
Police investigated the boy and discovered he used a school computer to send messages about a gun sale to a student at Lincoln High School in Des Moines.
Afton Police Chief John Coulter says the middle school student thwarted the boy's plans to sell the gun. Coulter says he previously thought Internet software had alerted officials to the messages, but that wasn't true.
Police haven't found the gun.