The federal government has quietly revived its investigation into the murder of Emmett Till, the 14-year-old African-American boy whose abduction and killing remains, almost 63 years later, among the starkest and most searing examples of racial violence in the South.

The Justice Department said that its renewed inquiry, which it described in a report submitted to Congress in late March, was “based upon the discovery of new information.” It is not clear, though, whether the government will be able to bring charges against anyone: Most episodes investigated in recent years as part of a federal effort to re-examine racially motivated murders have not led to prosecutions, or even referrals to state authorities.

The Justice Department declined to comment on Thursday, but it appeared that the government had chosen to devote new attention to the case after a central witness, Carolyn Bryant Donham, recanted parts of her account of what transpired in August 1955. Two men who confessed to killing Emmett, only after they had been acquitted by an all-white jury in Mississippi, are dead.

[Read about the woman linked to the 1955 murder of Emmett Till]

Yet the Till case, which staggered the nation after the boy’s open-coffin funeral and the publication of photographs of his mutilated body, has never faded away, especially in a region still grappling with the horrors of its past. Even in recent years, historical markers about the case have been vandalized.