>> the victim being a white woman, him being black, muslim, a towering figure, they're going to make an example. >> reporter: williams was convicted of killing 42-year-old felicia gale inside of her home in 1998. she was found with more than 40 stab wounds and a kitchen knife still lodged in her body. the case hinged on the testimony of two other criminals, williams former girlfriend and the cell mate he bunked with serving time for an unrelated crime. williams was also tied to stolen items from gale's home. and nearly all-white jury convicted williams of murder, sentenced him to die. but now the defense has new dna evidence it says proves williams is innocent. what does the dna evidence show in your mind? >> that he did not hold the murder weapon and the murder weapon was found in the victim's body. >> reporter: it was enough to delay the first execution date while experts examined the dna on the knife. the first would not exclude