The U.S. Attorney's Office in Philadelphia released the below information:
PHILADELPHIA – United States Attorney Jacqueline C. Romero announced that Al-Ashraf Basem Khalil, 28, of Philadelphia, PA, was arrested on June 24, 2022, after being charged by Criminal Complaint with arson on June 23, 2022. During a news conference held today with officials from the Bureau of Alcohol, Tobacco, Firearms and Explosives; the U.S. Marshals Service; and the Philadelphia Fire Department; First Assistant United States Attorney Nelson S. T. Thayer, Jr., detailed the charges outlined in the Complaint accusing the defendant of causing the arson at 300 W. Indiana Avenue in Philadelphia on June 18, 2022, which resulted in the death of Philadelphia Fire Lieutenant Sean Williamson. The announcement comes the day after funeral services were held for Lt. Williamson.