Darwin Martinez Torres is an illegal alien residing in Sterling, Virginia.   Torres received national media attention after he was arrested and charged with the murder of Muslim teenager Nabra Hassanen on June 18, 2017.   
Death of Nabra Hassanen
The teens were making their way back to the All Dulles Area Muslim Society between 3:00 a.m. and 4:00 a.m. early that Sunday morning, some walking and some riding bikes, when Torres drove up to the group and began to argue with a male teen.   
Torres hit Hassanen with the bat and took her with him in his car to another nearby location, where he assaulted her another time.   Authorities later found her body in a pond in the 21500 block of Ridgetop Circle in Sterling, Virginia.  
U.S. Immigration and Customs Enforcement have put a detainer on him, stating he's a citizen of El Salvador and that there's probable cause to believe he lacks permission to be in the United States.