Cincinnati (CNN) -- Charles Manson casts a long shadow. No one knows that better than his grandson, Jason Freeman, who is speaking out for the first time about growing up under, what he calls, a "family curse" started by Manson and his so-called "Manson family." "I'm personally, I'm coming out," says the 6-foot-2 kickboxer and cage fighter. Freeman, whose father killed himself in 1993, is "coming out," he says, because he wants the real Manson family to stop hiding from a name that still has the power to evoke fear. Today, Freeman wants to understand his roots and himself a bit better, two things denied him as a child. He knew from a young age that Charles Manson was his grandfather, but it never registered till one day in eighth-grade history class, said Freeman. Our teacher " ... was talking about Charles Manson and I'm looking around like, are there people staring at me?"
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Two men grapple with same heavy burden -- they might both descend from Charles Manson
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Cage fighter Jason Freeman says his family never discussed his infamous grandfather
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L.A. musician Matthew Roberts learns Manson may have fathered him in a 1967 orgy
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Moment of truth with DNA evidence: Are the two bound through the blood of Manson?
If Matthew Roberts and @placeholder are related, they will have an exact copy of Charles Manson's Y chromosome.