The Enforcement Act of 1871, sometimes called the Civil Rights Act of 1871 or the Second Ku Klux Klan Act, was a United States federal law.
 The act was the second of three Enforcement Acts passed by the United States Congress from 1870 to 1871 during the Reconstruction Era to combat attacks on the suffrage rights of African Americans from groups like the Ku Klux Klan.
Samuel Holloway Bowers (August 25, 1924 – November 5, 2006), Former Ku Klux Klan Imperial Wizard, was a convicted murderer and leading white supremacist activist in Mississippi during the Civil Rights Movement.
 In response to this movement, he co-founded a reactionary organization, the White Knights of the Ku Klux Klan.
 Bowers committed two notorious murders of civil rights activists in southern Mississippi: The 1964 murders of Chaney, Goodman, and Schwerner near Philadelphia, for which he served six years in federal prison; and the 1966 murder of Vernon Dahmer in Hattiesburg, for which he was sentenced to life in prison 32 years after the crime.
 He also was accused of bombings of Jewish targets in the cities of Jackson and Meridian in 1967 and 1968 (according to the man who was convicted of some of the bombings, Thomas A. Tarrants III).
 He died in prison at the age of 82.
The WKKK (also known as the Women's Ku Klux Klan or Women of the Ku Klux Klan) was one of a number of auxiliaries of the Ku Klux Klan.
 While most women focused on the moral, civic, and educational agendas of the Klan, they also had considerable involvement in issues of race, class, ethnicity, gender, and religion .
 The women of the WKKK fought for educational and social reforms like other Progressive reformers but with extreme racism and intolerance.
 Particularly prominent in the 1920s, the WKKK existed in every state, but their strongest chapters were in Ohio, Pennsylvania, Indiana, and Arkansas.
 White, native-born, Protestant women over age 16 were allowed to join the Klan.
 Women of the Klan differed from Klansmen primarily in their political agenda to incorporate racism, nationalism, traditional morality, and religious intolerance into everyday life through mostly non-violent tactics.
The New York World’s exposé of the Ku Klux Klan brought national media to the operations and actions of the Ku Klux Klan beginning on September 6th, 1921.
 The newspaper published a series of twenty one consecutive daily articles that discussed numerous aspects of Ku Klux Klan including rituals, recruitment methods, propaganda, and hypocrisies in logic.
 At least fifteen other newspapers nationwide picked up the coverage, which led to national discourse on the activities of the group.
 These publications included The St. Louis Post-Dispatch, Boston Globe, Pittsburgh Sun, The Plain Dealer (Cleveland), New Orleans Times-Picayune, Galveston News, Houston Chronicle, Seattle Times, Milwaukee Journal, Minneapolis Journal, Oklahoma City Oklahoman, Toledo Blade, Fort Wayne News-Sentinel, Syracuse Herald, Columbus Enquirer-Sun and the Albany Knickerbocker Press.
 The New York Times ran ads for the article series to increase exposure, while other large papers like the Baltimore Sun quickly picked up the article series instead of advertising for The World.
 The Ku Klux Klan announced shortly afterward that it would take legal action against all the publications that ran the article series for libel, seeking total damages of over ten million dollars.
Carolyn Elizabeth Goodman (née Drucker; October 6, 1915 – August 17, 2007) was a clinical psychologist who became a prominent civil rights advocate after her son, Andrew Goodman and two other civil rights workers, James Chaney and Michael Schwerner, were murdered by the Ku Klux Klan in Neshoba County, Mississippi, in 1964.
Michael Henry "Mickey" Schwerner (November 6, 1939 – June 21, 1964), was one of three Congress of Racial Equality (CORE) field/ social workers killed in Philadelphia, Mississippi, by members of the Ku Klux Klan.
 Schwerner and two others were killed in response to their civil rights work, which included promoting voting registration among African Americans, most of whom had been disenfranchised in the state since 1890.
The Enforcement Act of 1871 (17 Stat.
 13 ), also known as the Civil Rights Act of 1871, Force Act of 1871, Ku Klux Klan Act, Third Enforcement Act, or Third Ku Klux Klan Act, is an Act of the United States Congress which empowered the President to suspend the writ of habeas corpus to combat the Ku Klux Klan (KKK) and other white supremacy organizations.
 The act was passed by the 42nd United States Congress and signed into law by President Ulysses S. Grant on April 20, 1871.
 The act was the last of three Enforcement Acts passed by the United States Congress from 1870 to 1871 during the Reconstruction Era to combat attacks upon the suffrage rights of African Americans.
 The statute has been subject to only minor changes since then, but has been the subject of voluminous interpretation by courts.
The Enforcement Act of 1870, also known as the Civil Rights Act of 1870 or First Ku Klux Klan Act, or Force Act was a United States federal law written to empower the President with the legal authority to enforce the first section of the Fifteenth Amendment throughout the United States.
 The act was the first of three Enforcement Acts passed by the United States Congress from 1870 to 1871 during the Reconstruction Era to combat attacks on the suffrage rights of African Americans from state officials or violent groups like the Ku Klux Klan.
Ku Klux Klan auxiliaries are organized groups that supplement, but do not directly integrate with the Ku Klux Klan.
 These auxiliaries include: The Women of the Ku Klux Klan, The Jr.
 Ku Klux Klan, The Tri-K Girls, the American Crusaders, The Royal Riders of the Red Robe, The Ku Klux balla, and the Klan's Blind Colored Man auxiliary.
The White Patriot Party (WPP) was an American anti-Semitic white supremacist paramilitary political party associated with Christian Identity and the Ku Klux Klan.
 It was led by its founder, Frazier Glenn Miller Jr., through various organizational incarnations.
 The organization began in the mid-1970s as the Carolina Knights of the Ku Klux Klan.
 It was involved in the incident in Greensboro, North Carolina, when a confrontation between Klansmen, Nazis and communists left five people dead.
 The organization became the Confederate Knights of the Ku Klux Klan in the early 1980s and the White Patriot Party in 1985.

Question: Which civil rights activist was killed my the Ku Klux Klan?
Answer: Michael Schwerner