A bomb threat was called into Highland High School in Medina County Tuesday morning. The threat caused the school to go into a soft lockdown, with students eventually being sent home for the day. The threat was called in at about 9 a.m. and after an investigation by the Medina County Sheriff’s office it was determined the threat was not credible. The sheriff’s office said the person linked to the threat is the same person responsible for placing swatting calls throughout the county.