*snip* Knox’s appeal is now under way, and critical evidence used to convict her actually shows she’s innocent, says Boise State professor Greg Hampikian, a forensic DNA expert who volunteered to help the Knox defense. *snip* The DNA that investigators did find matched African drifter Rudy Guede, who had not previously been a suspect. “There’s a great amount of DNA … and it is all Rudy Guede’s,” Hampikian said. A bloody handprint on a wall and the feces were Guede’s, he said. *snip* The knife did not test positive for blood. It did contain a small amount of the victim’s...