As the trial against the accused Islamic State fighter El Shafee Elsheikh began this week on American soil, jurors in a northern Virginia courtroom were quickly exposed to accounts of unimaginable brutality.
Elsheikh, prosecutors alleged, carried out terrorist acts that involved the grisly deaths of four Americans – the journalists James Foley and Steven Sotloff, as well as the aid workers Kayla Mueller and Peter Kassig.