A man accused of helping plan the Abbey Gate bombing in Afghanistan that led to the deaths of 13 U.S. service members and roughly 170 others is set to stand trial in Virginia in December.

The trial for Mohammad Sharifullah, the alleged planner from the Islamic State group’s Afghanistan affiliate who was extradited from Pakistan to the United States earlier this year, is set to begin on Dec. 8, according to court documents. He is charged with providing and conspiring to provide material support or resources to designated foreign terrorist organizations resulting in death.