El-Nashar was detained July 14 in Cairo after Britain notified Egyptian authorities that it suspected he may have had links to some of the attackers.
El-Nashar was not not detained on July 14th.
( z1 detain :polarity - :ARG1 ( z2 person :name ( z3 name :op "El-Nashar" ) ) :time ( z4 date-entity :day 14 :month 7 ) )