[4] After being set free from prison in 1979, Abdul Hakeem founded a number of religious schools, including one in Karghalik, at which Hasan Mahsum studied from 1984 to 1989.
[13] The Chinese government has accused him of directing a series of violent terrorist activities including robbery and murder in Ürümqi on February 4, 1999 and violent murders in the Khotan region on December 14, 1999;[14] it is believed that these attacks were carried out by an operative of his named Mutalif Kasim.
[7] Uyghur detainees at Guantanamo bay have confessed that they were trained by Abdul Haq and Hassan Mahsum in Afghanistan, Abdul Haq was the leader who threatened terror attacks on the 2008 Beijing Olympics, sits on the Shura Council of al-Qaeda, and subscribes to the methodology of al-Qaeda.
[15] Chinese, Pakistani, and US officials confirmed that Mahsum was shot dead in an early-morning raid on a suspected al-Qaeda training camp by the Pakistan Army in South Waziristan, near the Afghan border, on October 2, 2003.
[16] The Pakistani army attacked an al-Qaeda hideout in South Waziristan near the border with Afghanistan on 2 October 2003, shooting and killing eight terrorists, including Mahsum.