At the risk of sounding repetitious, I must mention the dozens of witnesses/journalists who were associated with the JFK assassination who all perished in peculiar ways (e.g., karate chop to the neck upon emerging from the shower, getting run over by cars, "suicide" with more than one bullet wound).
This story has to do with LBJ and some of the crooked goings-on during his tenure as VP under JFK:
In 1961, State Agricultural Stabilization and Conservation official Henry Marshall was investigating a broad series of fraudulent government subsidies -- amounting to figures in the seven or eight digit range -- allotted to Billie Sol Estes, a close personal friend of Senate Majority Leader then Vice-President Lyndon B. Johnson. Marshall had uncovered a paper trail that was leading him closer and closer to Johnson himself.Guess what happened to Marshall??On June 3, 1961, Mac Wallace knocked Henry Marshall unconscious with a blunt object, fed the unconscious man carbon monoxide from a hose attached to Wallace's pick-up truck, then shot him five times with a bolt-action .22 caliber rifle and dumped him in a remote corner of Marshall's farm near Franklin, Texas. Justice of the Peace Lee Farmer pronounced the death a suicide and ordered Marshall buried without an autopsy -- over the protests of Marshall's widow. The verdict remained unchanged until 1984, when Billie Sol Estes, under a grant of immunity, told a grand jury that Wallace had been Marshall's killer, and that the order came from Vice-President Lyndon B. Johnson through White House aide Cliff Carter. Based on Estes' testimony and supporting evidence, the grand jury changed the earlier ruling of suicide to murder. Mac Wallace could not be indicted; he died in an automobile accident in Pittsburgh, Texas, on January 7, 1971.http://www.acorn.net/jfkplace/03/JA/DR/.dr14.html