Nathan Hale High School in West Allis was evacuated on Wednesday morning due to a perceived threat involving a student wearing a suspicious article of clothing, later identified as a weighted athletic training vest. The West Allis police conducted a thorough sweep of the building and took the student into custody, finding no actual threat. All students and staff were reported safe, and they returned to the building after the investigation concluded. The school district emphasized the importance of safety and provided counseling services for those affected. Parents were given the option to pick up their children from the designated area. The incident is under ongoing investigation by the West Allis Police Department.