UPDATE 1:50 P.M: Gadsden County Sheriff's Office says Gadsden County High School is back to normal operation. According to the Gadsden County School district, an anonymous gun threat call is the reason for Gadsden County High School to be placed under lockdown.According to the district, this is a precautionary measure, and the public will be updated if additional information is warranted.There was no word when the call was made. The school district and law enforcement are investigating.This is a developing storyThis is the second lockdown Gadsden County High has been placed under this week. The first one was reported on Wednesday.