In this photo provided by the Alexandria Sheriff's Office is Alexanda Kotey who is in custody at the Alexandria Adult Detention Center, Wednesday, Oct. 7, 2020, in Alexandria, Va. Two Islamic State militants from Britain, El Shafee Elsheikh and Kotey, were brought to the U.S. on Wednesday to face charges in a gruesome campaign of torture, beheadings and other acts of violence against four Americans and others captured and held hostage in Syria, the Justice Department said. They made their first appearance on Wednesday in federal court in Alexandria, Va. (Alexandria Sheriff's Office via AP)

FILE - In this March 30, 2019, file photo, Alexanda Amon Kotey, left, and El Shafee Elsheikh, who were allegedly among four British jihadis who made up a brutal Islamic State cell dubbed "The Beatles," speak during an interview with The Associated Press at a security center in Kobani, Syria. The Justice Department is preparing to announce charges Wednesday against two men from Britain who joined the Islamic State and were part of a cell that beheaded Western hostages, a law enforcement official said. Their arrival in the U.S. to face charges sets the stage for arguably the most sensational terrorism prosecution since the 2014 case against the suspected ringleader of a deadly attack on the diplomatic compound in Benghazi, Libya.(AP Photo/Hussein Malla, File)

In this photo provided by the Alexandria Sheriff's Office is El Shafee Elsheikh who is in custody at the Alexandria Adult Detention Center, Wednesday, Oct. 7, 2020, in Alexandria, Va. Two Islamic State militants from Britain, El Shafee Elsheikh and Alexanda Kotey, were brought to the U.S. on Wednesday to face charges in a gruesome campaign of torture, beheadings and other acts of violence against four Americans and others captured and held hostage in Syria, the Justice Department said. They made their first appearance Wednesday, in federal court in Alexandria, Va. (Alexandria Sheriff's Office via AP)

FILE - In this March 30, 2018 file photo, Alexanda Amon Kotey, left, and El Shafee Elsheikh, who were allegedly among four British jihadis who made up a brutal Islamic State cell dubbed "The Beatles," sit on a sofa during an interview with The Associated Press at a security center in Kobani, Syria. The Justice Department is preparing to announce charges Wednesday against two men from Britain who joined the Islamic State and were part of a cell that beheaded Western hostages, a law enforcement official said. Their arrival in the U.S. to face charges sets the stage for arguably the most sensational terrorism prosecution since the 2014 case against the suspected ringleader of a deadly attack on the diplomatic compound in Benghazi, Libya. (AP Photo/Hussein Malla)

FILE - In this March 30, 2019, file photo, Alexanda Amon Kotey, left, and El Shafee Elsheikh, who were allegedly among four British jihadis who made up a brutal Islamic State cell dubbed "The Beatles," speak during an interview with The Associated Press at a security center in Kobani, Syria. The Justice Department is preparing to announce charges Wednesday against two men from Britain who joined the Islamic State and were part of a cell that beheaded Western hostages, a law enforcement official said. Their arrival in the U.S. to face charges sets the stage for arguably the most sensational terrorism prosecution since the 2014 case against the suspected ringleader of a deadly attack on the diplomatic compound in Benghazi, Libya.(AP Photo/Hussein Malla, File)

FILE - In this March 30, 2018 file photo, Alexanda Amon Kotey, left, and El Shafee Elsheikh, who were allegedly among four British jihadis who made up a brutal Islamic State cell dubbed "The Beatles," sit on a sofa during an interview with The Associated Press at a security center in Kobani, Syria. The Justice Department is preparing to announce charges Wednesday against two men from Britain who joined the Islamic State and were part of a cell that beheaded Western hostages, a law enforcement official said. Their arrival in the U.S. to face charges sets the stage for arguably the most sensational terrorism prosecution since the 2014 case against the suspected ringleader of a deadly attack on the diplomatic compound in Benghazi, Libya. (AP Photo/Hussein Malla)

FILE- In this file photo dated Friday, March 30, 2018, a Kurdish security officer escorts Alexanda Kotey, left, and El Shafee Elsheikh, who were allegedly among four British jihadis who made up a brutal Islamic State cell dubbed "The Beatles," at a security center in Kobani, Syria. The Justice Department is preparing to announce charges Wednesday against two men from Britain who joined the Islamic State and were part of a cell that beheaded Western hostages, a law enforcement official said. Their arrival in the U.S. to face charges sets the stage for arguably the most sensational terrorism prosecution since the 2014 case against the suspected ringleader of a deadly attack on the diplomatic compound in Benghazi, Libya. (AP Photo/Hussein Malla)