Nicknamed “The Engineer”, Yahya Abd-al-Latif Ayyash was the chief bomb maker for Hamas and the most wanted man in Gaza for advancing the technique of self sacrificial bombing of the Ezzedeen al-Qassam Brigades.
Ayyash, an Electrical Engineer, was specialized in making explosives from raw materials available in the Palestinian territories. He used a deadly combination of commonly available household products: acetone and detergent. The combination of these products form acetone peroxide, an explosive known as “Mother of Satan” for its instability.
Ayyash personally built the bombs used in a number of Palestinian attacks which resulted in 439 Israeli casualties.
On January 5th, 1996, Ayyash was assassinated by a bomb-laden cell phone that he received from a friend, who had cooperated with the Shin Bet (Israel Security Agency). He was instantly killed upon answering the call