Question: Which survivor of the mass shooting that took place on October 16, 1991, at a Luby's restaurant in Killeen, Texas, United States became a leading advocate of an individual's right to carry a concealed weapon?

full_context: Document 1: Eugene Patterson Harris: Pat Harris has been a leading American criminal defense and civil rights attorney for over 25 years based in Los Angeles, California. In addition, he has co-written two non-fiction books, "Mistrial: An Inside Look at How the Criminal Justice System Works ... and Sometimes Doesn't" and the Susan McDougal autobiography, "The Woman Who Wouldn't Talk", which spent four weeks on the New York Times' bestseller list"." As a lawyer, he has been involved in a number of high-profile cases including representing Susan McDougal in her fight against Whitewater prosecutor Kenneth Starr, and Will Lynch who was accused of assaulting a priest who had abused him forty years earlier.
Document 2: Stephen Halbrook: Stephen P. Halbrook is a Senior Fellow at the Independent Institute and an author and lawyer known for his litigation on behalf of the National Rifle Association. He has written extensively about the original meanings of the Second Amendment and the Fourteenth Amendment (the latter as applied to Second Amendment rights). He has argued and won three cases before the US Supreme Court: "Printz v. United States", "United States v. Thompson-Center Arms Company", and "Castillo v. United States". He has also written briefs in many other cases, including the Supreme Court cases "Small v. United States" (pertaining to the Gun Control Act of 1968) and "McDonald v. Chicago". In "District of Columbia v. Heller", he wrote a brief on behalf of the majority of both houses of Congress. More broadly, his decades of research on the Second Amendment contributed to the intellectual foundation of the "Heller" decision. He has written many books and articles on the topic of gun control, some of which have been cited in Supreme Court opinions ("Heller", "McDonald", "Printz v. United States"). He has testified before congress on multiple occasions. Halbrook’s most important scholarly contribution, however, was the book "That Every Man Be Armed", originally published in 1986. The book was the most thorough analysis of the legal history and original intent of the Second Amendment.
Document 3: University of Texas tower shooting: On August 1, 1966, Charles Whitman, a former Marine sharpshooter, took rifles and other weapons to the observation deck atop the Main Building tower at The University of Texas at Austin, then opened fire on persons indiscriminately on the surrounding campus and streets.
Document 4: Murder of Ken Tillery: Ken Tillery of Jasper, Texas, was murdered on January 19, 2002. On the night of his murder, Tillery, a white man, was outside of a suspected crackhouse when he was approached by three black males, Darrell Gilbert, Blake Little, and Anthony Holmes, and offered a ride in their vehicle, an early 1980s model Oldsmobile Cutlass. Tillery accepted, but an argument later developed over the gas money he agreed to pay. Tillery expected to pay only $5, but the men demanded $50. When the car passed Tillery's home and arrived at a gas station, he jumped out and tried to flee, but was caught and beaten by the three men. Tillery's attackers ran him over.
Document 5: Luby's shooting: The Luby's shooting, also known as the Luby's massacre, was a mass shooting that took place on October 16, 1991, at a Luby's restaurant in Killeen, Texas, United States. The perpetrator, George Hennard, drove his pickup truck through the front window of the restaurant, and immediately shot and killed 23 people, and wounded 27 others before fatally shooting himself. It is the fourth deadliest massacre by a single shooter in U.S. history.
Document 6: Hungerford massacre: The Hungerford massacre was a series of random shootings in Hungerford, Berkshire, United Kingdom, on 19 August 1987, when Michael Robert Ryan, an unemployed antique dealer and handyman, fatally shot 16 people, before taking his own life. The shootings, committed using a handgun and two semi-automatic rifles, occurred at several locations, including a school he had once attended. A police officer died in the incident, and many people were injured. 15 other people were also shot but survived. No firm motive for the killings has ever been established, although one psychologist has theorised Ryan's motive for the massacre had been a form of "anger and contempt for the ordinary life" around him, which he himself was not a tangible part of.
Document 7: Capitol Hill massacre: The Capitol Hill massacre was a mass murder committed by 28-year-old Kyle Aaron Huff in the southeast part of Seattle's Capitol Hill neighborhood. On the morning of Saturday, March 25, 2006, Huff entered a rave after-party and opened fire, killing six and wounding two. He then killed himself as he was being confronted by police on the front porch of 2112 E. Republican Street.
Document 8: 1993 Aurora shooting: On December 14, 1993, four employees were shot and killed and a fifth employee was seriously injured at a Chuck E. Cheese's restaurant in Aurora, Colorado. The perpetrator, 19-year-old Nathan Dunlap, a former employee of the restaurant, was frustrated about being fired from working at the restaurant five months prior to the shooting and sought revenge by committing the attack. He fled the scene of the shooting with stolen cash and restaurant items.
Document 9: Sue Donahue: Sue Donahue is an American politician. Donahue was appointed in 2016 to serve in the Arizona State Senate representing the fifth legislative district as a member of the Republican Party. Donahue replaced Kelli Ward who resigned to run for the United States Senate. Donahue did not run for re-election in 2016 and was replaced by Sonny Borrelli.
Document 10: 2009 Fort Hood shooting: On November 5, 2009, a mass shooting took place at Fort Hood, near Killeen, Texas. Nidal Hasan, a U.S. Army major and psychiatrist, fatally shot 13 people and injured more than 30 others. The shooting was the worst mass shooting on an American military base.
Document 11: Sarah Davis (Texas politician): Sarah Davis (born 1976) is an American politician and a Republican member of the Texas House of Representatives; she was first elected in the Tea Party wave of 2010. Davis' district contains The Galleria and the Texas Medical Center.
Document 12: Virginia Tech shooting: The Virginia Tech shooting, also known as the Virginia Tech massacre, occurred on April 16, 2007, on the campus of Virginia Polytechnic Institute and State University in Blacksburg, Virginia, United States. Seung-Hui Cho, a senior at Virginia Tech, shot and killed 32 people and wounded 17 others in two separate attacks (another six people were injured escaping from classroom windows), approximately two hours apart, before committing suicide.
Document 13: Tyler courthouse shooting: On February 24, 2005, a man shot his wife and son outside the courthouse in Tyler, Texas, then engaged police and court officers in a shootout. David Hernandez Arroyo, Sr. opened fire in front of the courthouse with a semi-automatic AK-47 rifle, killing his ex-wife, and wounding his son. A downtown resident, Mark Alan Wilson, attempted to intervene but was shot dead. Arroyo was fatally shot by police after a high-speed pursuit.
Document 14: Suzanna Hupp: Suzanna Gratia Hupp, DC (born September 28, 1959), is a former Republican member of the Texas House of Representatives, who represented traditionally Democratic District 54 (Bell, Burnet, and Lampasas counties) for ten years from 1997–2007. After surviving the Luby's shooting in 1991, Hupp became a leading advocate of an individual's right to carry a concealed weapon. Hupp was elected to her first of five consecutive terms in 1996. She did not seek a sixth two-year term in 2006. She has also written a book called "From Luby’s to the Legislature: One Woman’s Fight Against Gun Control", published by Privateer Publications, San Antonio, Texas.
Document 15: This Is Not the Life I Ordered: The four authors were all friends prior to writing the book. Jackie Speier is a Congresswoman from California, and was a candidate for Lieutenant Governor of California in 2006. Speier survived five gunshot wounds when she was shot by members of Peoples Temple in 1978 when she traveled to Jonestown with Congressman Leo J. Ryan. Jan Yanehiro is a broadcast journalist, and co-hosted "Evening Magazine" which aired on San Francisco's KPIX. Yanehiro is a co-executive producer of "Pacific Fusion", a television magazine program featuring Asian American lifestyle, which airs on KRON.
ground_truth: Suzanna Gratia Hupp