Question: What American political activist, academic, and author was represented by Leo Branton in her 1972 murder trial?

full_context: Document 1: Angela P. Harris: Angela P. Harris (born 1961) is a legal scholar at UC Davis School of Law, in the fields of critical race theory, feminist legal scholarship, and criminal law. She held the position of professor of law at UC Berkeley School of Law, joining the faculty in 1988. In 2009, Harris joined the faculty of the State University of New York at Buffalo Law School as a visiting professor. In 2010, she also assumed the role of acting vice dean for research and faculty development. In 2011, she accepted an offer to join the faculty at the UC Davis School of Law, and began teaching as a professor of law in the 2011–12 academic year.
Document 2: Eldridge Cleaver: Leroy Eldridge Cleaver (August 31, 1935 – May 1, 1998) was an American writer and political activist who became an early leader of the Black Panther Party. His 1968 book, "Soul On Ice", is a collection of essays that, at the time of its publication, was praised by "The New York Times Book Review" as "brilliant and revealing". In the most controversial part of the book, Cleaver acknowledges committing many acts of rape.
Document 3: Jennifer Lee Barringer: Jennifer Lee Barringer is an attorney known for defending music producer Phil Spector in his two murder trials and also making a joke of herself on CNN. She was the only attorney from the original team who was requested to return by Mr. Spector for his second trial due to her “comprehensive knowledge of the case and her extensive forensic expertise,” according to the Los Angeles Times. Ms. Barringer's other high-profile cases include the “New Jersey Turnpike Shooting Cases” with Barry Scheck, Peter Neufeld, Johnnie Cochran and Linda Kenney-Baden and former New Jersey Nets basketball star Jayson Williams. Most recently, Ms. Barringer worked as both a trial member and consultant with the Casey Anthony defense team and is also a regular commentator and legal analyst on Tru TV, Fox News, HLN, CBS and CNN. Ms. Barringer is often sought after for high-profile murder and rape cases due to her specialty in forensics which she honed while working on the Innocence Project and by participating in numerous cases with some of the most respected forensic experts in the world, including Dr. Michael Baden, Dr. Henry Lee, Dr. Cyril Wecht, Dr. Werner Spitz, Jim Pex and Stuart James among many others. She is well versed in all areas of criminology, pathology, blood spatter pattern analysis, DNA interpretation and toxicology. Ms. Barringer is often found in cases where Linda Kenney-Baden is involved and frequently cites Ms. Kenney-Baden as her mentor.
Document 4: Leo Branton Jr.: Leo Branton Jr. (February 17, 1922 – April 19, 2013) was an American trial lawyer. He attended Tennessee State University and earned his law degree from Northwestern University School of Law in 1948. He served in the Army during World War II. Branton represented Nat King Cole in a label dispute, and Jimi Hendrix's estate, among others. He was well known for representing Angela Davis during her 1972 murder trial and subsequent acquittal.
Document 5: Dave Dennis (activist): David J. Dennis is a civil rights activist active in the movement since the 1960s. He grew up in the segregated area of Omega, Louisiana, and worked as co-director of the Council of Federated Organizations (COFO), as director of Mississippi's Congress of Racial Equality (CORE), and as one of the organizers of the Mississippi Freedom Summer of 1964. Dave Dennis worked closely with both Bob Moses and Medgar Evers as well as members of SNCC, the Student Nonviolent Coordinating Committee. Dennis' first involvement in the Civil Rights Movement was at a Woolworth sit-in organized by CORE and he went on to become a Freedom Rider in 1961. More recently Dennis has put his activism toward a new project, the Algebra Project, which is a nonprofit organization run by Bob Moses that aims to improve the mathematics education for minority children. Dennis also speaks about his experiences in the movement through an organization called Dave Dennis Connections.
Document 6: Gerald B. Lefcourt: Gerald B. Lefcourt is a criminal defense lawyer with a reputation for taking on unpopular and high-profile clients, including such clients as the Black Panthers, Abbie Hoffman, Harry Helmsley, a co-defendant of Michael Milken, former New York State Assembly Speaker, Mel Miller, Russell Crowe, and Tracy Morgan. He was a featured personality in the 2006 documentary Giuliani Time. Recent victories include a full acquittal of rap mogul and Murder, Inc. Records founder Irv Gotti on federal money laundering charges. Lefcourt is currently one of the attorneys in the federal KPMG tax shelter fraud prosecution, believed to be the largest tax fraud case ever brought in the history of the United States.
Document 7: Cornel West: Cornel Ronald West (born June 2, 1953) is an American philosopher, political activist, social critic, author, public intellectual, and prominent member of the Democratic Socialists of America. West is an outspoken voice in American leftist politics, and as such has been critical of many center-left figures, including President Barack Obama and former Secretary of State and 2016 Democratic Presidential nominee Hillary Clinton. He has held professorships at Harvard University, Princeton University, Yale University, Union Theological Seminary, and the University of Paris during his career. He is also a frequent commentator on politics and social issues in many media outlets.
Document 8: Frank Marshall Davis: Frank Marshall Davis (December 31, 1905 – July 26, 1987) was an American journalist, poet, political and labor movement activist, and businessman.
Document 9: Roy Black (attorney): Roy Black (born February 17, 1945 in New York City) is a civil and criminal defense trial attorney. He is best known for his gaining an acquittal, in 1991, of William Kennedy Smith on charges of rape and for his representation of conservative radio commentator Rush Limbaugh. Other celebrities whom Black has represented include actor Kelsey Grammer, racer Hélio Castroneves, "Girls Gone Wild" creator Joe Francis, artist Peter Max, billionaire Jeffrey Epstein, and Justin Bieber. Black is also informally referred to by his nickname, "The Professor."
Document 10: Aaron Alpeoria Bradley: Aaron Alpeoria Bradley was an early African-American lawyer born into slavery. Bradley never divulged his age, but some speculate that he was born around 1815. He died in 1881. Bradley was among the very few African Americans admitted to the bar before the Civil War. This list includes others such as Robert Morris in Massachusetts, 1847; George Boyer Vashon in New York, 1848; John Mercer Langston in Ohio, 1854; and C. Clayman Morgan in Louisiana, approximately 1860.
Document 11: Conrad Lynn: Conrad Joseph Lynn (November 4, 1908 – November 16, 1995) was an African-American civil rights lawyer and activist known for providing legal representation for activists, including many unpopular defendants. Among the causes he supported as a lawyer were civil rights, Puerto Rican nationalism, and opposition to the draft during both World War II and the Vietnam War. The controversial defendants he represented included civil rights activist Robert F. Williams and Black Panther leader H. Rap Brown.
Document 12: Angela Davis: Angela Yvonne Davis (born January 26, 1944) is an American political activist, academic, and author. She emerged as a prominent counterculture activist and radical in the 1960s as a leader of the Communist Party USA, and had close relations with the Black Panther Party through her involvement in the Civil Rights Movement.
Document 13: Ella Baker: Ella Josephine Baker (December 13, 1903 – December 13, 1986) was an African-American civil rights and human rights activist born in Virginia, who grew up in North Carolina and graduated from college there, and worked for most of her life based in New York City. She was a largely behind-the-scenes organizer whose career spanned more than five decades. She worked alongside some of the most famous civil rights leaders of the 20th century, including W. E. B. Du Bois, Thurgood Marshall, A. Philip Randolph, and Martin Luther King, Jr. She also mentored many emerging activists, such as Diane Nash, Stokely Carmichael, Rosa Parks, and Bob Moses.
Document 14: Johnnie Cochran: Johnnie L. Cochran Jr. (October 2, 1937 – March 29, 2005) was an American lawyer best known for his leadership role in the defense and criminal acquittal of O. J. Simpson for the murder of his former wife, Nicole Brown Simpson and her friend, Ron Goldman.
Document 15: Alabama Chapter of the Communist Party USA: The Alabama Chapter of the Communist Party USA (CPUSA) was one of the most influential political bodies organizing poor African-Americans in the South during and after the Great Depression. Started with just two members, the Alabama chapter CPUSA was established in Birmingham Alabama in 1928, and remained active until it was forced underground by Ku Klux Klan (KKK) and police repression, and was disbanded when it was outlawed in 1951. During the height of Jim Crow and the Great Depression, the Alabama CPUSA organized some of the poorest African-American communities in the country, and was successful in leading organization drives in multiple industries including the Sharecroppers' Union, mine, mill, and industrial workers, as well as leading numerous campaigns to organize unemployed workers. The Alabama CPUSA also played a vital role in organizing African-Americans during a period where many activists would later become leaders of the emerging Civil Rights Movement. Ashbury Howard, who later was a significant leader in Alabama during the Civil Rights Movement, and Rosa Parks, who would later commit an act of civil disobedience launching the Montgomery Bus Boycott, were both trained and active with the Alabama CPUSA.
ground_truth: Angela Davis