From the Washington Post:
Three years after the FBI pledged to investigate more than 100 unsolved civil rights killings, the agency is ready to close all but a handful. Investigators say they have solved most of the mysteries behind the cases, but few will result in indictments, given the passage of decades, the deaths of prime suspects and the challenge of gathering evidence.
“There’s maybe five to seven cases where we don’t know who did it,” said FBI Special Agent Cynthia Deitle, who is heading the bureau’s effort. “Some we know; others we know but can’t prove. For every other case, we got it.”
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Even without taking cases to court, the project has filled in broad gaps in the stories of the murdered, many of whom were forgotten victims from a brutal chapter of American history.
Officials now believe, for example, that an Alabama state trooper killed an unarmed civil rights protester in 1965, a case that helped inspire the Rev. Martin Luther King Jr. to march in the state. In the deaths of two North Carolina men in police custody — one found in 1956 with a crushed skull and the other who refused medical treatment in 1960 after a heart attack — the agency concluded that there was no federal law it could use to pursue the cases.