Member of Brutal ISIS ‘Beatles’ Cell Pleads Guilty in Hostage Cases. Kotey, Alexanda, Kidnapping and Hostages, Terrorism, Torture, Islamic State in Iraq and Syria (ISIS), Elsheikh, El Shafee, Foley, James (1973-2014), Sotloff, Steven J, ALEXANDRIA (VA), Syria, Kassig, Peter Edward (1988-2014), Mueller, Kayla (1988-2015), Great Britain