| 1. Khalil al-Hayya grew up in Gaza during its time under Egyptian rule. |
| 2. He started as a part-time teacher after completing his graduation. |
| 3. He has been linked with the Muslim Brotherhood since the 1980s. |
| 4. Joined Hamas in 1987 amid the Palestinian revolt against Israel. |
| 5. Was a close associate of former Hamas leader Yahya Sinwar. |
| 6. Criticized President Mahmoud Abbas after the Palestinian Legislative Elections in 2006. |
| 7. Lost seven family members in Israeli air strikes in 2007, which were intended to target him. |
| 8. Experienced personal tragedy with the loss of one of his sons in 2008 due to an airstrike. |
| 9. Advocated for Palestinian state recognition and unity among Palestinian factions. |
| 10. Recognized the need for new leadership in the PA to better represent the people. |
| 11. Participated in reconciliation talks with Fatah in Algeria in January 2022. |
| 12. Publicly addressed the need for ending conflict while establishing a Palestinian state. |
| 13. Attended a notable meeting with Syrian President Bashar al-Assad to mend relations after years of conflict. |
| 14. Played a significant role in plans for attacks against Israel, notably in October 2023. |
| 15. Served as head of Hamas’s parliamentary bloc in the Palestinian Legislative Council. |
| 16. Played a key role in negotiating a ceasefire with Israel during the 2014 Gaza war. |
| 17. Appointed commander of Hamas’s armed wing, the Izz ad-Din al-Qassam Brigades, in December 2024 following the death of Mohammed Deif. |
| 18. Has led Hamas delegations in ceasefire and hostage exchange talks with Israel mediated by Qatar, Egypt, and others. |
| 19. Lost multiple family members in Israeli air strikes in 2007, which were intended to target him, including his wife and three children. |
| 20. Experienced personal tragedy with the loss of his son Hamza in 2008 due to an Israeli airstrike. |
| 21. Played a significant role in planning the October 7, 2023 operations against Israel. |
| 22. Left Gaza several years before October 7, 2023 and has been based primarily in Qatar. |
| 23. Regarded as having good ties with Iran and has been closely involved in the group's diplomatic efforts. |
| 24. Accompanied Hamas leader Ismail Haniyeh to Tehran in July 2024 during the visit in which Haniyeh was assassinated. |
