Who Is Stephen Broderick? Ex-Deputy Sheriff on the Run After Austin Mass Shooting On 4/19/21 at 4:03 AM EDT Stephen Nicholas Broderick, 41, a former deputy sheriff with the Travis County Sheriff's Office, is on the run after three people were shot dead at an apartment complex in Austin, Texas, on Sunday. After fleeing the scene, Broderick was quickly identified by police as the suspected gunman in the shooting which claimed the lives of two women and a man shortly before noon. Police efforts to locate Broderick evolved into a fugitive hunt on Sunday afternoon, with officials scouring areas outside the Great Hills Trail neighborhood of Arboretum. Police helicopters were also seen flying above the crime scene.