Jack Brooks Lacy Jr., 69, who as an assistant U.S. attorney led the first federal murder prosecution in a civil rights-era killing, died Friday in Mississippi of a single bullet to the head, Rankin County Coroner Jimmy Roberts said.
Roberts said he would not have the autopsy report until Monday, but suspects suicide.
Mr. Lacy was known for his work in the 2003 conviction of former Ku Klux Klansman Ernest Avants for aiding and abetting the murder of black sharecropper Ben Chester White on federal property. Prosecutors said White, 67, was killed in the Homochitto National Forest in 1966 in an attempt to lure Martin Luther King Jr. to southwest Mississippi for assassination.



