The 27-year-old, named only as F. Hassan, is accused of personally beheading the imam of a city in Homs province, Syria, in May 2015 then overseeing the massacre of 25 civilians.
ISIS 'butcher' is charged with crimes against humanity in Hungary
The 27-year-old, named only as F. Hassan, is accused of personally beheading the imam of a city in Homs province, Syria, in May 2015 then overseeing the massacre of 25 civilians.