Authorities arrested Ezzedine Khaled for a video satirizing the sale of two islands to Saudi Arabia.
Four gunmen shoot and kill officers traveling in a bus in the Helwan district of the Egyptian capital.
Egyptian authorities suppressed demonstrations about island deal.
The report said that the Egyptian police detained the Italian student on the night of his death.
Giulio Regeni disappeared on Jan. 25 and his body was found on Feb. 3, dumped on the side of a road outside Cairo.
Hamad el Kaddah tells "Newsweek" how he became the last person left on the plane with the hijacker.
The hijacker emerged from the aircraft at Larnaca airport with his hands in the air.
Sheikh Abdus Salaam Bassiouni holds both South African and Egyptian citizenship and was held without charge.
Hesham Geneina came under fire from senior officials after he alleged widespread graft in Egypt.
Justice Minister Ahmed al-Zend immediately said "God forgive me," and on Saturday issued an apology.
The alleged Muslim Brotherhood members were ordered held in connection with the June attack in Cairo.
Christophe Naudin is accused of helping the pair flee the Dominican Republic.
He lasted less than a year in the job.