HARRISBURG – The United States Attorney’s Office for the Middle District of Pennsylvania announced that Sean Stark, age 38, of Carlisle, Pennsylvania, was charged by criminal information with involuntary manslaughter. According to United States Attorney Brian D. Miller, the information alleges that on March 12, 2026, Stark killed Private First Class Krystofer Lopez at Letterkenny Army Depot while conducting firearms training in a grossly negligent manner. Along with the information, the U.S. Attorney’s Office also filed a plea agreement in which Stark agreed to waive indictment and plead guilty to the information. Stark will enter a plea of guilty in accordance with the plea agreement at a hearing to be scheduled by the court.“The circumstances surrounding Mr. Lopez’s death are heartbreaking for his family and loved ones,” said U.S. Attorney Miller. “I hope this prosecution brings some relief for the family while ensuring that justice is delivered.” The U.S. Army Criminal Investigation Division investigated the case. Assistant United States Attorneys Scott Ford and Alisan Martin are prosecuting the case. If convicted, Stark faces a maximum penalty for this offense of eight years of imprisonment, a term of supervised release following imprisonment, and a fine. A sentence following the finding of guilt is imposed by the Judge after consideration of the applicable federal sentencing statutes and the Federal Sentencing Guidelines.Criminal informations are only allegations. All persons charged are presumed to be innocent unless and until found guilty in court.# # #
Source: U.S. Department of Justice