Hi Tawi2, I used to work in Al Khobar (nr. Dhahran, Sau'di Arabia).
They must have named themselves after this place:from Wiki:
The Khobar Towers bombing was a terrorist attack on part of a housing complex in the city of Khobar, Saudi Arabia, located near the national oil company (Saudi Aramco) headquarters of Dhahran. In 1996, Khobar Towers was being used to house foreign military personnel.
On June 25, 1996, per official statement, individuals identified as members of Hezbollah Al-Hejaz (Party of God in the Hijaz)[1][2] by the United States, exploded a sewage truck packed with explosives adjacent to Building #131 in the housing complex. This eight-story building housed United States Air Force personnel from the 4404th Wing (Provisional), primarily from a deployed rescue squadron and deployed fighter squadron. In all, 19 U.S. servicemen and one Saudi[1] were killed and 372 of many nationalities were wounded.