The Wikipedia article on Leo Frank offers a different perspective on the case.
en.m.wikipedia.org
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Leo Max Frank (April 17, 1884 – August 17, 1915) was an American factory superintendent who was convicted in 1913 of the murder of a 13-year-old employee, Mary Phagan, in Atlanta, Georgia. His trial, conviction, and appeals attracted national attention. His lynching two years later, in response to the commutation of his death sentence, became the focus of social, regional, political, and racial concerns, particularly regarding antisemitism. Today, the consensus of researchers on the subject holds that Frank was wrongly convicted and Jim Conley was likely the actual murderer.
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Unlike the Nation of Islam and Sister Renata Muhammad, the Wikipedia article discusses the role of anti-Semitism. It also mentions the fact that it was Leo Frank who was abducted and lynched.
The Encyclopedia Britannica also offers a perspective differing from that of the NOI and Sister Renata Muhammad, concluding:
Leo Frank | American factory superintendent
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In 1982 Alonzo Mann, Frank’s “office boy,” came forward with new evidence incriminating Conley. The ADL and others petitioned Georgia for a pardon based on that evidence. The petition was initially denied, but in 1986 Georgia pardoned Frank for failing to protect him while in custody, without addressing his guilt or innocence. With few exceptions, contemporary scholarship sustains claims of Frank’s innocence
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EDITED TO ADD:
Sister Renata Muhammad's statement that "Leo Frank was the Father of the ADL" is grossly misleading. Frank wad certainly not a founder of the ADL. The ADL wad founded partly in response to the Leo Frank case.