COLUMBIA, S.C. AP – Nationally syndicated radio host Tom Joyner is asking South Carolina to posthumously pardon two of his great-uncles – black landowners executed in 1915 after being convicted of murdering an elderly Confederate Army veteran.

Joyner learned of the fate of his great-uncles, farmers Thomas and Meeks Griffin, during filming of the PBS documentary “African American Lives 2,” which first aired in February 2008 and was based on research by Harvard scholar Henry Louis Gates Jr.