Question: Which leading Libyan revolutionary was killed in the Second Gulf of Sidra offensive?

full_context: Document 1: Second Gulf of Sidra offensive: The Second Gulf of Sidra offensive was a military operation in the Libyan Civil War conducted by rebel anti-Gaddafi forces in August and September 2011 to take control of towns along the Gulf of Sidra in an effort to surround Muammar Gaddafi's hometown of Sirte, which was held by pro-Gaddafi forces. It ended on 20 October, when Muammar Gaddafi and his son Mutassim Gaddafi were killed along with former defense minister, Abu-Bakr Yunis Jabr. The Gaddafi loyalists in the area were finally defeated when NTC fighters captured Sirte.
Document 2: Domestic responses to the Libyan Civil War (2011): During the early stages of the Libyan Civil War of 2011, the Gaddafi regime was still in power: but there was widespread withdrawal of support from that regime by influential persons and organisations within the country. Among those who no longer supported the regime, the main concern they expressed was what they regarded as its use of excessive force against peaceful protestors. There were many resignations by ministers of the governing council and other senior officials, diplomats posted abroad, and senior military officers. Islamic clerics, tribal leaders, and members of the former royal family expressed their opposition, while the two leading Libyan oil companies also withdrew support for the regime.
Document 3: First Gulf of Sidra offensive: The First Gulf of Sidra offensive was the second major rebel offensive of the Libyan Civil War. It was mounted by anti-Gaddafi forces immediately after their victory in the Battle of Ajdabiya. The offensive was meant to have the rebel forces quickly reach Gaddafi's hometown of Sirte.
Document 4: Yasser Arafat: Mohammed Yasser Abdel Rahman Abdel Raouf Arafat al-Qudwa ( ; Arabic: محمد ياسر عبد الرحمن عبد الرؤوف عرفات‎ ‎ ‎ ; 24 August 1929 – 11 November 2004), popularly known as Yasser Arafat (Arabic: ياسر عرفات‎ ‎  , "Yāsir `Arafāt ") or by his kunya Abu Ammar (Arabic: أبو عمار‎ ‎  , "'Abū `Ammār "), was a Palestinian political leader. He was Chairman of the Palestine Liberation Organization (PLO) from 1969 to 2004 and President of the Palestinian National Authority (PNA) from 1994 to 2004. Ideologically an Arab nationalist, he was a founding member of the Fatah political party, which he led from 1959 until 2004.
Document 5: Action in the Gulf of Sidra (1986): In the Action in the Gulf of Sidra, the United States Navy deployed aircraft carrier groups in the disputed Gulf of Sidra in the Mediterranean Sea. Libya claimed that the entire Gulf was their territory, at 32° 30' N, with an exclusive 62 nmi fishing zone. Libyan leader Muammar Gaddafi asserted this in 1973 and dubbed it The Line of Death. The United States claimed its rights to conduct naval operations in international waters, a standard of 12 nmi territorial limit from a country's shore.
Document 6: Battle of Ajdabiya: The Battle of Ajdabiya was an armed battle in and near the city of Ajdabiya that took place as part of the Libyan Civil War. It was fought between anti-government rebels and military forces loyal to the Libyan leader Muammar Gaddafi. Following the Second Battle of Brega, in which pro-Gaddafi forces captured the town, Ajdabiya was the only major rebel-held city left en route to the rebel capital of Benghazi. The battle for Ajdabiya had been cited as a potential turning point in the conflict on which the fate of the whole rebellion against the Gaddafi government may be decided. On 26 March 2011, Libyan rebels, backed by extensive allied air raids, seized control of the frontline oil town of Ajdabiya from Colonel Muammar Gaddafi's forces. During the first phase of the battle, pro-Gaddafi forces seized the strategic road junction leading to Benghazi and Tobruk, and captured most of the city. The city centre remained in rebel hands, but was surrounded by pro-government forces and cut off from outside assistance. After the second phase, anti-Gaddafi forces recaptured the road junction and cleared loyalist forces from the city, sending them retreating down the Libyan Coastal Highway towards Sirte.
Document 7: Muammar Gaddafi: Muammar Mohammed Abu Minyar Gaddafi ( ;    ;  1942 20 October 2011), commonly known as Colonel Gaddafi, was a Libyan revolutionary, politician, and political theorist. He governed Libya as Revolutionary Chairman of the Libyan Arab Republic from 1969 to 1977, then as the "Brotherly Leader" of the Great Socialist People's Libyan Arab Jamahiriya from 1977 to 2011. He was initially ideologically committed to Arab nationalism and Arab socialism, but later came to rule under his own Third International Theory.
Document 8: Idris bin Abdullah al-Senussi: Idris bin Abdullah al-Senussi (born 18 January 1957) is an exiled Libyan opposition figure and a claimant to the headship of the Sanussiyyah movement. While Libya’s legitimate royal family was under house arrest after Gaddafi overthrew their rule, Idris began claiming to be the heir to the Libyan throne, a claim that is contrary to the Constitution/Royal Decree. He has continued to claim he is the legitimate heir despite the fact that his cousin, Prince Mohammed El Senussi, is the designated heir of the last Libyan Crown Prince, and under the Constitution is the legitimate Heir to the Senussi Crown. However, he later stated that if the old Constitution of Libya (1951) (as amended in 1961) was restored post-Gaddafi, there would be free elections and the people would be united under the constitution with "some modifications where the part of the monarch will be taken out" and the people would be able to elect a head of state, who could be called "president or whatever they want to call him". The position of heir to the throne is also claimed by Prince Mohammed El Senussi, the son and designated heir of the last Libyan Crown Prince. Idris al-Senussi returned to Libya on 23 December 2011 and stated he would not be active in politics or campaigning for the monarchy. He returned to Libya in December 2011 with his cousin, Ahmed Zubair Al-Senussi.
Document 9: Gulf of Sidra Offensive (2017): The Gulf of Sidra Offensive was an offensive of the Second Libyan Civil War. It was launched by the Benghazi Defense Brigades on 3 March 2017, and has so far resulted in them taking control of a strip of coastal territory between the towns of Nofaliya and Ras Lanuf, which was then handed over to the Government of National Accord. A number of significant oil ports are located in this area, sometimes referred to as the Oil Crescent. The loss of the Oil Crescent has been perceived by analysts as a major blow to the power of Field Marshal Khalifa Haftar.
Document 10: Thomas Sankara: Thomas Isidore Noël Sankara (] ; 21 December 1949 – 15 October 1987) was a Burkinabé military captain, Marxist revolutionary, pan-Africanist and President of Burkina Faso from 1983 to 1987. Viewed by supporters as a charismatic and iconic figure of revolution, he is commonly referred to as "Africa's Che Guevara".
Document 11: History of Libya under Muammar Gaddafi: Muammar Gaddafi became the "de facto" leader of Libya on 1 September 1969 after leading a group of young Libyan military officers against King Idris I in a bloodless coup d'état. After the king had fled the country, the Libyan Revolutionary Command Council (RCC) headed by Gaddafi abolished the monarchy and the old constitution and established the Libyan Arab Republic, with the motto "freedom, socialism, and unity".
Document 12: Libyan Arab Jamahiriya: Libyan Arab Jamahiriya, formally known as the Great Socialist People's Libyan Arab Jamahiriya (Arabic: الجماهيرية العربية الليبية الشعبية الاشتراكية‎ ‎ "al-Ǧamāhīriyyat al-ʿArabiyyat al-Lībiyyat aš-Šaʿbiyyat al-Ištirākiyyat ") was the name from 1986 to 2011 of the Libyan state established by Muammar Gaddafi after the overthrow of the Kingdom of Libya in 1969. On 2 March 1977, the GPC, at Gaddafi's behest, adopted the "Declaration of the Establishment of the People's Authority".
Document 13: Sidra, Libya: Sidra or Sidr (Arabic: السدر‎ ‎ ) is a port about 23 km west of Ra's Lanuf in Libya. It is Libya's largest oil depot, shipping about 447000 oilbbl/d , and during the Cold War gave its name to the 'Gulf of Sidra', an alternative name for the Gulf of Sirte. Sidra Airport is directly next to the port.
Document 14: Battle of Sirte (2011): The Battle of Sirte (also spelled Surt) was the final battle of the Libyan Civil War, beginning when the National Liberation Army attacked the last remnants of the Libyan army still loyal to Muammar Gaddafi in his hometown and designated capital of Sirte, on the Gulf of Sidra. As of September 2011, Sirte and Bani Walid were the last strongholds of Gaddafi loyalists and the NTC hoped that the fall of Sirte would bring the war to an end. The battle and its aftermath marked the final collapse of the four-decade Gaddafi regime. Both Gaddafi and his son, Mutassim, were wounded and captured, and tortured and killed in custody less than an hour later. The month-long battle left Sirte almost completely in ruins, with many buildings damaged or totally destroyed.
Document 15: Che Guevara: Ernesto "Che" Guevara (] June 14, 1928 – October 9, 1967) was an Argentine Marxist revolutionary, physician, author, guerrilla leader, diplomat and military theorist. A major figure of the Cuban Revolution, his stylized visage has become a ubiquitous countercultural symbol of rebellion and global insignia in popular culture.
ground_truth: Muammar Gaddafi