Mounir Dandan was one of 63 victims of the bombing of the American Embassy in Beirut, Lebanon, which took place on April 18, 1983. At approximately 1:05 PM, a truck loaded with nearly 2,000 pounds of explosives careened through the driveway of the American embassy and crashed into the building. A massive explosion ripped through all seven levels of the embassy, sending debris flying hundreds of feet into the air and causing the burning building to collapse on itself. In addition to those who lost their lives, at least 120 people were injured. At the time, it was the deadliest attack on an American diplomatic mission since World War II. Mr. Daccache was one of 38 local employees of the American Embassy (36 Lebanese, one Tunisian, and one Egyptian) who were killed in the explosion.

Source of information: https://www.iranrights.org/memorial/story/33095/antoine-daccache