Shukr was, according to Israeli intelligence, a key figure in the transfer of Iranian guidance systems for Hezbollah's long-range missiles.

[3] He was believed to have played a role in the 1983 Beirut barracks bombings,[3] that killed 241 U.S. and 58 French military personnel, six civilians and two attackers.

[5][6] Shukr was born on 15 April 1961,[7] at the village of Al-Nabi Shayth, in eastern Lebanon, which was also the birthplace of Hezbollah co-founder Abbas al-Musawi.

Shukr's house in Al-Nabi Shayth is believed to be the last known location of Ron Arad, an Israeli fighter pilot who went missing in Lebanon in 1986.

[9] Shukr participated in the planning and execution of the 1983 Beirut barracks bombings, which resulted in the deaths of 307 people, including 241 U.S. military personnel and 58 French soldiers.

It is believed that the call was made after someone connected to Israel, breached Hezbollah's internal communications network, and saw it would be easier to target him at a higher floor.