Former Northrop Grumman Guard Pleads Guilty to Murder

Dylan Blake Chandler, a 27-year-old armed security guard at a Northrop Grumman facility in Linthicum, Maryland, pleaded guilty to second-degree murder and use of a firearm in a crime of violence in the January 2026 killing of his supervisor, Joseph Keith Aman. Prosecutors said Chandler shot Aman once in the head during a meeting about workplace performance; coworkers disarmed and restrained Chandler until police arrived. Chandler told investigators he had “snapped,” and the state’s attorney said investigators believe the killing was not premeditated but followed a reprimand. Chandler is scheduled to be sentenced Dec. 15, 2026.