The suspect in Sunday’s killing of a South Lakes High School sophomore is under an Immigration and Customs Enforcement detainer.

Carissa Cutrell, a spokesperson for ICE, confirmed that the detainer was lodged Monday against 22-year-old Darwin Martinez Torres of Sterling. Torres is facing a murder charge in the death of 17-year-old Nabra Hassanen, who was attacked on Dranesville Road in Herndon early Sunday morning. Her body was found later that day in a Sterling pond.

Torres is a citizen of El Salvador living in the United States. An ICE detainer is filed to “identify and ultimately remove criminal aliens who are currently in federal, state or local custody,” according to the ICE website.

“ICE lodges detainers on aliens who have been arrested on local criminal charges when the agency has probable cause to believe an alien is removable from the United States,” Cutrell said, adding that Torres had no encounters with ICE prior to this case.

The Fairfax County Police Department believes Torres killed Hassanen after becoming enraged by the group of teens walking from McDonald’s toward the All Dulles Area Muslim Society following a Ramadan service. He chased after the teens, police said, and caught Hassanen. He allegedly struck her with a baseball bat before putting her in his car and taking her to Loudoun County, where police say he killed her.

Torres remains in custody at the Fairfax County Adult Detention Center. He has a court date set for July 19.