جبهة التحرير الفلسطينية
In 1985, Klinghoffer (then 69, retired, and in a wheelchair) was on a cruise on the "Achille Lauro" with his wife Marilyn to celebrate their 36th wedding anniversary. On October 7, four hijackers from the Palestine Liberation Front (PLF) took control of the liner off Egypt as it was sailing from Alexandria to Port Said, Egypt. Holding the passengers and crew hostage, they ordered the captain to sail to Tartus, Syria, and demanded the release of 50 Palestinians, then in Israeli prisons, including the Lebanese prisoner Samir Kuntar, who had been responsible for the murder of five civilians in a terrorist attack in 1979.