No, it didn't. Casey was the last person to report seeing Caylee. That is the only evidence that links directly to her. They could not tie the duct tape, garbage bag, laundry bag, or heart sticker directly to the Anthony home, or any purchases Casey had made. They could not prove that Caylee's dead body was ever in the trunk of Casey's car. Caylee was left in a muddy, mucky, marshy area of low-lying swamp area...yet Casey's car had absolutely no traces of any dirt or mud from the drop location. The searches on the home computer could not be concretely linked to Casey. There were no witnesses. All character testimony indicated Casey was an excellent mother with no history of ill-treatment, resentment, or regret. The evidence was all circumstantial. Every last bit of it. As the prosecution said, "It really hurt us that it took so long to find the body". Perhaps if it had been found sooner they could have found something to indicate Casey.
As to George and the allegations of abuse/sexual abuse? Baez tried several times to admit just evidence into the trial and was repeatedly shot down by Perry, who deemed it to be "irrelevant".