Kassem Ayache, Local Guard Force, was one of the victims of the 1984 United States Embassy Annex bombing in Beirut. On September 20, 1984, the Shi'a Islamic militant group Hezbollah, with support and direction from the Islamic Republic of Iran, carried out a suicide car bombing targeting the U.S. embassy annex in East Beirut, Lebanon. The attacker sped his van laden with 3,000 pounds (1360 kg) of explosives toward the six-story embassy, crucial security measures had not yet been completed at the complex, including a massive steel gate. The van was heading for the entrance of the diplomatic facility, but did not get within ten yards of the building after the driver was shot by a bodyguard of the British ambassador and Lebanese embassy guards and lost control of the vehicle. The vehicle detonated at 11:44 a.m. after striking a parked van.

The explosion "ripped off the front of the embassy, shredding glass, bending steel bars and destroying cars in a nearby parking lot." The attack killed a total of 24 people (including the suicide bomber). Only two of the dead were American: Chief Warrant Officer Kenneth V. Welch of the U.S. Army and Petty Officer 1st Class Michael Ray Wagner of the U.S. Navy, who were both assigned to the U.S. Defense Attache Office in Beirut. The majority of those killed were Lebanese, "either local employees or people seeking visas".

Source of information: https://en.wikipedia.org/wiki/1984_United_States_embassy_annex_bombing_in_Beirut