It was the rashness which caused him a lot of problems with his brethren from the Islamist movements...Essam Al-Qamari (Arabic: عصام القمري, alias Zakariyya[2]) was a decorated tank commander and Major in the Egyptian army who smuggled weapons and ammunition from army strongholds for al-Jihad as a "disciple" of the late Sayyid Qutb.
[3][4] In February 1981, Egyptian police arrested a man smuggling weapons who was carrying a map of the military's tank placements.
[1][2] Meanwhile, he acquired a number of hand grenades for Abbud al-Zumar, and experimented trying to build a timer-detonator using a fan and a broken light bulb, although it failed.
[2] He later strenuously opposed Omar Abdel-Rahman's leadership of al-Gama'a al-Islamiyya with other jihadist groups following the assassination of Anwar Sadat.
[5] In 1988, he escaped from prison along with Khamis Muslim and Mohamed al-Aswani, ostensibly aided by Khaled Medhet al-Fiqi.