But that previous entry was getting way too long. So, from the top, Bloomberg.com: U.S. Renews Probe of 1955 Killing of Black Teenager (Update1):
The Justice Department said in a statement it will help local officials determine ``whether any prosecutions remain possible under state law.'' The federal government can't prosecute the case because the applicable law in 1955 required charges to be filed within five years of the killing.
Two white men, Roy Bryant and J.W. Milam, were charged in the slaying of Till, 14, whose mutilated body was found by fishermen in Mississippi. An all-white jury acquitted both defendants, who have since died. The maker of a recent documentary on the case has said that some people involved in the murder are still alive.
[. . .] Police arrested Milam and Bryant, who were indicted on charges of kidnapping and murder. At their trial, Till's uncle identified them as the men who had taken the teenager. After 67 minutes of deliberations, the all-white jury acquitted the two men.
That, and previous articles made it sound certain that further prosecutions are possible, while this one makes that sound like something they're looking into.