Question: For which University did Marcus Jackson play college football ? 

full_context: Document 1: Marcus Dupree: Marcus L. Dupree (born May 22, 1964) is a former American football player. He was born and grew up in Philadelphia, Mississippi, where his playing in high school attracted national attention. A highly touted and sought-after college football recruit, he played at Oklahoma, where he was named Football News Freshman of the Year, second team All-American and Big Eight Conference Newcomer of the Year. He left in the middle of his sophomore season and briefly attended the University of Southern Mississippi. Marcus played spring football for the Golden Eagles and finished college at the university.
Document 2: 2012–13 TCU Horned Frogs men's basketball team: The 2012–13 TCU Horned Frogs basketball team represented Texas Christian University in the 2012–13 NCAA Division I men's basketball season. This was head coach Trent Johnson's first season at TCU. They played their home games at Daniel–Meyer Coliseum in Fort Worth, Texas and were in their first season as members of the Big 12 Conference. They finished the season 11–21, 2–16 in Big 12 play to finish in last place. They lost in the first round of the Big 12 Tournament to Texas. On February 8, 2013, TCU earned their first ever Big 12 conference victory with a 62–55 upset win over 5th ranked Kansas. The win was also TCU's first over an opponent ranked in the top 5.
Document 3: Steven Jackson: Steven Rashad Jackson (born July 22, 1983) is a former American football running back. He played college football for Oregon State and was drafted by the St. Louis Rams 24th overall in the 2004 NFL Draft. He also played for the Atlanta Falcons and New England Patriots.
Document 4: 1915 TCU Horned Frogs football team: The 1915 TCU Horned Frogs football team represented Texas Christian University (TCU) in the 1915 college football season. The Horned Frogs finished the season 4–5 overall. The team was coached by Ewing Y. Freeland in his first and only year as head coach. The Frogs played their home games at Clark Field, which was located on campus in Fort Worth, Texas.
Document 5: Marcus Vick: Marcus Deon Vick (born March 20, 1984) is a former American football player who briefly appeared in one game for the Miami Dolphins in 2006. He is the younger brother of former NFL quarterback Michael Vick. Both Marcus and Michael played high school football in Newport News Public Schools. Vick accepted a football scholarship to Virginia Tech, playing quarterback, however he was suspended for the entire 2004 season due to numerous criminal convictions. Vick then declared himself eligible for the NFL spring draft in 2006, but went undrafted. He was later signed by the Miami Dolphins as an undrafted free agent but was released on May 1, 2007.
Document 6: Marcus Cooper: Marcus Cooper (born February 1, 1990) is an American football cornerback for the Chicago Bears of the National Football League (NFL). He was drafted by the San Francisco 49ers in the seventh round of the 2013 NFL Draft. He played college football for Rutgers University. Cooper has also played for the Kansas City Chiefs and Arizona Cardinals.
Document 7: Marcus Jackson: Marcus Jackson (born November 30, 1986) is a professional arena football and indoor football quarterback who is currently a free agent. Jackson played college football for the TCU Horned Frogs football team.
Document 8: Marcus Cannon: Marcus Darell Cannon (born May 6, 1988) is an American football offensive tackle with the New England Patriots of the National Football League. Prior to the 2011 NFL Draft, Cannon was considered one of the top offensive tackle prospects and was selected by the Patriots in the fifth round with the 138th pick of the draft. He played college football at Texas Christian University.
Document 9: DeSean Jackson: DeSean William Jackson (born December 1, 1986) is an American football wide receiver for the Tampa Bay Buccaneers of the National Football League (NFL). He played college football for the University of California, Berkeley, where he was recognized as a consensus All-American. He was drafted by the Philadelphia Eagles in the second round of the 2008 NFL Draft, and played for the Washington Redskins for three seasons after his departure from the Eagles. Jackson has been selected to the Pro Bowl three times, and was the first player selected to the Pro Bowl at two different positions in the same year when he was named to the 2010 Pro Bowl as a wide receiver and return specialist.
Document 10: TCU Horned Frogs: The TCU Horned Frogs are the athletic teams that represent Texas Christian University. The 18 varsity teams participate in NCAA Division I and in the Football Bowl Subdivision (FBS) for football competing in the Big 12 Conference. On October 10, 2011, TCU announced that it had accepted an invitation to join the Big 12 Conference.
Document 11: Big Ten Conference: The Big Ten Conference (B1G), formerly Western Conference and Big Nine Conference, is the oldest Division I collegiate athletic conference in the United States. Despite its name, the conference consists of 14 members (as of 2016). They compete in the NCAA Division I; its football teams compete in the Football Bowl Subdivision (FBS), formerly known as Division I-A, the highest level of NCAA competition in that sport. The conference includes the flagship public university in each of 11 states stretching from New Jersey to Nebraska, as well as two additional public land grant schools and a private university.
Document 12: 2014 TCU Horned Frogs football team: The 2014 TCU Horned Frogs football team represented Texas Christian University (TCU) in the 2014 NCAA Division I FBS football season. Playing as a member of the Big 12 Conference (Big 12), the team was led by head coach Gary Patterson, in his 14th year, and played its home games at Amon G. Carter Stadium in Fort Worth, Texas. They finished the season 12–1, 8–1 in Big 12 play to win a share of the Big 12 title with Baylor. They were invited to the Peach Bowl where they defeated Ole Miss.
Document 13: 2015–16 TCU Horned Frogs men's basketball team: The 2015–16 TCU Horned Frogs men's basketball team represented Texas Christian University in the 2015–16 NCAA Division I men's basketball season, led by head coach Trent Johnson in his fourth and final season at TCU. The Horned Frogs were members of the Big 12 Conference and played their home games at Schollmaier Arena, which reopened in December after a $72 million upgrade. Some early season, non-conference games were played in the TCU University Recreation Center and the Wilkerson-Greines Activity Center while construction on Schollmaier Arena was completed. The Horned Frogs finished the season 12–21, 2–16 in Big 12 play to finish in last place. They defeated Texas Tech in the first round of the Big 12 Tournament to advance to the quarterfinals where they lost to West Virginia.
Document 14: TCU Horned Frogs football: The TCU Horned Frogs football team is the intercollegiate football team of Texas Christian University (TCU). The Horned Frogs compete in Division I Football Bowl Subdivision (FBS), the highest level of intercollegiate athletics sanctioned by the National Collegiate Athletic Association (NCAA) in the United States.
Document 15: Luke McCown: Lucas Patrick McCown (born July 12, 1981) is an American football quarterback who is currently a free agent. He played college football for the Louisiana Tech University Bulldogs, and was drafted by the Cleveland Browns in the fourth round of the 2004 NFL Draft. He also played for the Tampa Bay Buccaneers from 2005 to 2008, Jacksonville Jaguars from 2009 to 2011, Atlanta Falcons in 2012, and New Orleans Saints from 2013 to 2016. He is the younger brother of current New York Jets quarterback Josh McCown and former Texas A&M quarterback Randy McCown.
ground_truth: Texas Christian University