(CNN) An employee of a company that makes clear plastic teeth aligners opened fire at one of its Tennessee facilities Tuesday morning, injuring three people there before police officers shot and killed him, authorities said. The gunman, a 22-year-old day-shift employee, walked into the SmileDirectClub manufacturing facility in the Nashville neighborhood of Antioch just before 6 a.m. and shot a manager and two security guards, the Metropolitan Nashville Police Department said. Security guard Johnny Hardin, 46, was being treated at a hospital in critical condition Tuesday afternoon; security guard Carlton Watson, 66, was in stable condition, police said. Thomas Abbott, a 54-year-old manager, was treated at a hospital and released, police said. A worker who witnessed the shooting told CNN she had just clocked in and sat down at her station when she saw the gunman, weapon in hand.

Source: CNN August 03, 2021 12:26 UTC