Suicide bomber recruiter Syaifudin Zuhri bin Ahmad Jaelani, Jemaah Islamiyah military leader Zulkarnaen, bomb specialist Dulmatin, and operative Mohamad Syahrir are thought to be the prime contenders to replace Noordin Mohammed Top as the leader of the Tandzim al-Qaedat Indonesia. Top, who was killed by police on Sept. 17, is thought to have been sodomized in the past.