Other 15 indictees were sentenced to life imprisonment, eight people to eight years in prison and 15 more to 10 years in custody, the website of the Dostor newspaper said.
The preliminary sentence was announced on June 17, and in line with the Egyptian legislation the decision on death penalty should be approved by country's Grand Mufti.
No organization claimed responsibility for the attack, however, the Interior Ministry said that the Muslim Brotherhood (terrorist organization banned in Russia) was behind the attack, which was carried out with the assistance of the Palestinian group Hamas.
Overall, 67 people were involved in the organization of the assassination of the official, who was responsible for the investigation of high-profile criminal cases on prison escapes, where one of the defendants was former Islamist President Mohamed Morsi.
