Question: what does Murders of Chaney, Goodman, and Schwerner and Andrew Goodman have in common?

Context articles: Edgar Ray Killen
Frances Taylor
James Chaney
United States v. Price
Roy K. Moore
Alton Wayne Roberts
Murders of Chaney, Goodman, and Schwerner
Carolyn Goodman (psychologist)
Murder in Mississippi
Andrew Goodman

Edgar Ray "Preacher" Killen (born January 17, 1925) is a former Ku Klux Klan organizer who planned and directed the murders of James Chaney, Andrew Goodman, and Michael Schwerner, three civil rights activists participating in the Freedom Summer of 1964.
 He was found guilty in state court of three counts of manslaughter on June 21, 2005, the forty-first anniversary of the crime, and sentenced to 60 years in prison.
 He appealed against the verdict, but the sentence was upheld on January 12, 2007, by the Mississippi Supreme Court.
Frances Fink Taylor (born Pearl Frances Finkelstein, July 10, 1909 — December 8, 1979) was a New York music and film critic and a lyricist whose best-known song, "Those Three Are on My Mind" (with music by Pete Seeger) was a lament for the murdered civil rights workers - James Chaney, Andrew Goodman, and Michael Schwerner.
James Earl Chaney (May 30, 1943 – June 21, 1964), from Meridian, Mississippi, was one of three American civil rights workers who were murdered during Freedom Summer by members of the Ku Klux Klan near Philadelphia, Mississippi.
 The others were Andrew Goodman and Michael Schwerner from New York City.
United States v. Cecil Price, et al., also known as the Mississippi Burning trial or Mississippi Burning case, was a criminal trial where the United States charged a group of 18 men with conspiring in a Ku Klux Klan plot to murder three young civil rights workers (Michael Schwerner, James Chaney, and Andrew Goodman) in Philadelphia, Mississippi on June 21, 1964 during Freedom Summer.
 The trial, conducted in Meridian, Mississippi with U.S. District Court Judge W. Harold Cox presiding, resulted in convictions of 7 of the 18 defendants.
Roy K. Moore (June 11, 1914 Hood River Oregon - October 12, 2008 Madison Wisconsin) was an American FBI agent and former Marine who was best known as the chief agent who investigated the disappearance of civil rights workers James Chaney, Michael Schwerner and Andrew Goodman.
 The 1988 film "Mississippi Burning", starring Gene Hackman and Willem Dafoe was based on that case.
 Because of the efforts of Moore and his agents, nineteen men were indicted and seven were convicted.
 All served less than 6 years in prison.
Alton Wayne Roberts (April 6, 1938 – September 11, 1999) was a Klansman convicted of depriving slain activists Michael Schwerner, Andrew Goodman and James Chaney of their civil rights in 1964.
 He personally shot two of the three civil rights workers before his accomplices buried their bodies in a dam.
The murders of Chaney, Goodman, and Schwerner, also known as the Freedom Summer murders, the Mississippi civil rights workers' murders or the Mississippi Burning murders, involved three activists that were abducted and murdered in Neshoba County, Mississippi in June 1964 during the Civil Rights Movement.
 The victims were Andrew Goodman and Michael "Mickey" Schwerner from New York City, and James Chaney from Meridian, Mississippi.
 All three were associated with the Council of Federated Organizations (COFO) and its member organization the Congress of Racial Equality (CORE).
 They had been working with the Freedom Summer campaign by attempting to register African Americans in Mississippi to vote.
 This registration effort was a part of contesting over 70 years of laws and practices that supported a systematic policy of disenfranchisement of potential black voters by several southern states that began in 1890.
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.
Murder in Mississippi is a 1990 television film which dramatized the last weeks of civil rights activists Michael "Mickey" Schwerner, Andrew Goodman and James Chaney, and the events leading up to their disappearance and subsequent murder during Freedom Summer in 1964.
 It starred Tom Hulce as Schwerner, Jennifer Grey as his wife Rita, Blair Underwood as Chaney, and Josh Charles as Goodman.
 Hulce received a nomination for Best Actor in a TV Miniseries at the 1990 Golden Globes.
Andrew Goodman (November 23, 1943 – June 21, 1964) was one of three American activists of the Civil Rights Movement and also a Social Worker, murdered near Philadelphia, Mississippi, during Freedom Summer in 1964 by members of the Ku Klux Klan.