Khadaffy Abubakar Janjalani (also transliterated as Khadafy Janjalani, Khadafi Janjalani and Khaddafi Janjalani) (March 3, 1975 – September 4, 2006) was the nominal leader of the Filipino militant group Abu Sayyaf and the leader of one of its factions.Janjalani was also known as Daf or Pek. He was a citizen of the Philippines and spoke both Tausug and Tagalog, as well as some Arabic.