Does anyone else think the DNA evidence against Amanda Knox is weak?

the DNA wasn't the strongest part of the case against Knox, the strongest part in my opinion were the contradictory answers she gave to questions when she was interrogated and the fact that she purchased a quantity of cleaning materials after the time the death occurred and then the fact that she attempted to place the blame on a person with an alibi. All of which added up to proof beyond reasonable doubt that she had acted as part of the murder.