Dr. Martin Luther King’s family and his personal friend and attorney, William F. Pepper, won a civil trial that found US government agencies guilty in the wrongful death of Martin Luther King. The 1999 trial, King Family versus Jowers and Other Unknown Co-Conspirators,  is the only trial ever conducted on the assassination of Dr. King.
The King family’s attempts for a criminal trial were denied, as suspect James Ray’s recant of what he claimed was a false confession was denied. Mr. Ray said that his government-appointed attorney told him to sign a confession in order to receive a trial. When Mr. Ray discovered that his signature meant no trial, his and the King family’s subsequent requests were denied.
The US government also denied the King family’s requests for independent investigation of the assassination.
Therefore, and importantly, the US government has never presented any evidence subject to challenge that substantiates their claim that Mr. Ray assassinated Dr. King.
US corporate media did not cover the trial, interview the King family, and textbooks omit this information. Journalist and author, James Douglass: 
“I can hardly believe the fact that, apart from the courtroom participants, only Memphis TV reporter Wendell Stacy and I attended from beginning to end this historic three-and-one-half week trial. Because of journalistic neglect scarcely anyone else in this land of ours even knows what went on in it. After critical testimony was given in the trial’s second week before an almost empty gallery, Barbara Reis, U.S. correspondent for the Lisbon daily Publico who was there several days, turned to me and said, “Everything in the U.S. is the trial of the century. O.J. Simpson’s trial was the trial of the century. Clinton’s trial was the trial of the century. But this is the trial of the century, and who’s here?” ”
For comparison, please consider the media coverage of O.J. Simpson’s trials: 
“Media coverage of the Simpson trial, which began in January 1995, was unlike any other. Over two thousand reporters covered the trial, and 80 miles of cable was required to allow nineteen television stations to cover the trial live to 91 percent of the American viewing audience. When the verdict was finally read on October 3, 1995, some 142 million people listened or watched. It seemed the nation stood still, divided along racial lines as to the defendant’s guilt or innocence. During and after the trial, over eighty books were published about the event by most everyone involved in the Simpson case.”
The overwhelming evidence of government complicity introduced and agreed as comprehensively valid by the jury includes the 111th Military Intelligence Group were sent to Dr. King’s location, and that the usual police protection was pulled away just before the assassination. Military Intelligence set-up photographers on a roof of a fire station with a clear view to Dr. King’s balcony. 20th Special Forces Group had an 8-man sniper team at the assassination location on that day. Memphis police ordered the scene where multiple witnesses reported as the source of shooting cut down of their bushes that would have hid a sniper team. Along with sanitizing a crime scene, police abandoned investigative procedure to interview witnesses who lived by the scene of the shooting.
The King family believes the government’s motivation to murder Dr. King was to prevent his imminent camp-in at Washington, D.C. until the Vietnam War was ended and those resources directed to end poverty and invest in US hard and soft infrastructure.
Please watch this six-minute video of the evidence from the trial,  and this eight-minute video  on the FBI’s disclosures of covert operations against Dr. King, including confirmation from his closest friends and advisors.
Coretta Scott King, Dr. King’s wife, is certain of the evidence after 30 years of consideration from the 1968 assassination to the 1999 trial:
“For a quarter of a century, Bill Pepper conducted an independent investigation of the assassination of Martin Luther King, Jr. He opened his files to our family, encouraged us to speak with the witnesses, and represented our family in the civil trial against the conspirators. The jury affirmed his findings, providing our family with a long-sought sense of closure and peace, which had been denied by official disinformation and cover- ups. Now the findings of his exhaustive investigation and additional revelations from the trial are presented in the pages of this important book. We recommend it highly to everyone who seeks the truth about Dr. King’s assassination.”
— Coretta Scott King, Dr. King’s wife.
William Francis Pepper (born August 16, 1937) is an attorney based in New York City who is most noted for his efforts to prove the innocence of James Earl Ray in the Assassination of Martin Luther King, Jr. and Sirhan Sirhan in the Assassination of Robert F. Kennedy. Source
"William Pepper details the responsibility of the US government for the assassination of Martin Luther King after more than 30 years’ investigation. Altho there were 2 snipers and their spotters in place, employed by the US, a 3rd shooter in bushes, a hired off-duty Memphis policeman, fired the fatal shot."
Martin Luther King, Jr. speaks to thousands during the March on Washington. Image: Source
"The war in Vietnam is but a symptom of a far deeper malady within the American spirit, and if we ignore this sobering reality we will find ourselves organizing clergy and laymen-concerned committees for the next generation. They will be concerned about Guatemala and Peru. They will be concerned about Thailand and Cambodia. They will be concerned about Mozambique and South Africa. We will be marching for these and a dozen other names and attending rallies without end unless there is a significant and profound change in American life and policy. ....
"I am convinced that if we are to get on the right side of the world revolution, we as a nation must undergo a radical revolution of values. We must rapidly begin the shift from a ’thing-oriented’ society to a ’person-oriented’ society. When machines and computers, profit motives and property rights are considered more important than people, the giant triplets of racism, materialism and militarism are incapable of being conquered. ....
"A nation that continues year after year to spend more money on military defense than on programs of social uplift is approaching spiritual death.
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