premise: Montasser el-Zayat (] ) or Muntasir al-Zayyat (Arabic: منتصر الزيات‎ ‎ "Muntaṣir az-Zayyāt ") (born 1956) is an Egyptian lawyer and author whose former clients, according to press reports, included Ayman al-Zawahiri, since 2011 the leader of al-Qaeda, the terrorist organization, and al-Gama'a al-Islamiyya.
hypothesis: Montasser el-Zayat is a member of al-Qaeda.
reason: Montasser el-Zayat is a lawyer who supposedly had the leader of al-Qaeda, Ayman al-Zawahiri, as a client. However, the statement never indicates that Montasser el-Zayat is actually a member of al-Qaeda. The system may have assumed membership in the terrorist group due to his association with a known member.