On Thursday, it was announced that two British men from an ISIS cell that beheaded hostages had been arrested. The cell itself was referred to as “The Beatles,” and members El Shafee Elsheikh and Alexanda Amon Kotey, who hailed from West London, were captured last month in eastern Syria. They were both listed as terrorists by the State Department.

The cell was responsible for the beheadings of at least 25 hostages including American journalists James Foley and Steven Sotloff and American aid worker Peter Kassig.

On Friday, Foley’s mother told the BBC that she wants Elsheikh and Kotey tried and imprisoned for the rest of their lives, adding, “… their crimes are beyond imagination. They really have not done anything good in the world, so I think they need to spend the rest of their life being held."

The two men have reportedly been linked to “Jihadi John,” who appeared in videos showing beheadings of hostages.

Air Force Col. John Thomas said the two terrorists have been interrogated; he called their capture “A big deal for America.”

CBS News reported, “According to the U.S., Elsheikh traveled to Syria in 2012 and first joined al Qaeda's branch there, and then later joined ISIS. The State Department, in imposing sanctions on Kotey last year, said he likely engaged in executions and torture, including electronic shock and waterboarding, and recruited several British nationals to ISIS."