School resource officers identified and charged a Smyrna High School student today who was accused of threatening the school Tuesday night, an SRO sergeant said.“The post on Instagram said, ‘Do not come to Smyrna High School today’ with a picture of a loaded magazine” of a gun, said SRO Sgt. Tim Hayes.Smyrna High School SROs Matt King and Matthew Arrington worked with detectives and identified the student who admitted making the threat, Hayes said.King charged the 17-ye .