Question: Which survivor at a mass shooting at restaurant located in Killeen, Texas was also a former Republican member of the Texas House of Representatives?

Context articles: Tony Tinderholt
Debbie Riddle
Luby's shooting
Scott Cosper
Suzanna Hupp
David Simpson (Texas politician)
Jim Keffer
Rodney Anderson (Texas politician)
2009 Fort Hood shooting
Hugh Shine

Tony Dale Tinderholt (born August 13, 1970) is a Republican member of the Texas House of Representatives from Arlington, Texas.
 In 2017, a Rice University study said that Tinderholt was the fourth most conservative representative in the Texas House.
 On January 13, 2015, Tinderholt succeeded Diane Patrick, a four-term representative whom he unseated in the Republican primary election on March 4, 2014.
Debbie Riddle (born October 15, 1949) is a former Republican member of the Texas House of Representatives for District 150, which encompasses much of northwest Harris County in and about Houston, Texas.
 Riddle was defeated in the Republican primary by Valoree Swanson of Spring, Texas, who then claimed the seat in the general election held on November 8, 2016.
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.
Scott Cosper is an American politician.
 He is a Republican member of the Texas House of Representatives, representing the 54th District.
 Cosper succeeded Republican Jimmie Don Aycock, who did not seek re-election in 2016.
 Cosper is the former mayor of Killeen, Texas.
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.
David Philip Simpson (born June 27, 1961) is a former Republican member of the Texas House of Representatives for District 7, based in Gregg and Upshur counties.
 In 2010, he unseated the incumbent, Tommy Merritt of Longview, in the Republican primary with 52.88 percent of the vote and then prevailed in the general election for the 82nd Texas Legislature on November 2, 2010 with 91.28 percent of the vote, having had no Democratic opponent.
James Lloyd Keffer (born January 20, 1953) is a businessman from Eastland, Texas, who is a former Republican member of the Texas House of Representatives from District 60, which includes Eastland County located east of Abilene, as well as Brown, Callahan, Coleman, Shackelford, Stephens Palo Pinto, and Hood counties.
Rodney Earl Anderson (born 1968) is a Republican member of the Texas House of Representatives for District 105 based in his native Grand Prairie in Dallas County, Texas.
 He initially won election to District 105 of the Texas House in 2014 and won re-election in 2016.
 He previously was elected to Texas House District 106 in 2010, but chose not to run for re-election.
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.
Hugh Shine is a retired United States Army Colonel, financial advisor, and politician.
 He is a Republican member of the Texas House of Representatives, representing the 55th District.
 Shine defeated incumbent Molly White in the 2016 Republican primary and went on to win the November 2016 general election.
 He previously served two terms in the Texas House of Representatives from 1986 to 1990 before vacating his seat to run unsuccessfully for the United States House of Representatives.