Amanda Knox Guilty: Former Boyfriend Raffaele Sollecito Raises Doubts About Killing

Amanda Knox may be responsible for the death of roommate Meredith Kercher after all, her former boyfriend Raffaele Sollecito is now saying.

Until now, Knox and Sollecito have been in solidarity regarding the case, not turning on each other despite only dating for one week before the murder took place. But that has changed now, with Sollecito facing prison time himself.

Sollecito now admitted admitted on Italian TV that he was troubled by Amanda Knox's behavior after the murder. He said she went home to shower and appeared agitated later.

"Certainly I asked her questions," Sollecito said. "Why did you take a shower? Why did she spend so much time there?"

Knox has been convicted of murdering Kercher in 2007 after a re-trial in Italy. She faces 25 years in prison.

Legal experts think that Raffaele Sollecito may be trying to strengthen his own case for an appeal by throwing doubt toward Knox.

"I think he's distancing himself from her. He's saying there's some evidence that applies to her that doesn't apply to him," said Today show legal analyst Lisa Bloom.

Knox, now 22, continues to deny her involvement in Kercher's murder.

Shortly after the verdict was announced, Amanda Knox appeared on ABC's Good Morning America Friday and vowed to fight the verdict.

"I'm going to fight this to the very end," she told interviewer Robin Roberts after the verdict was announced. "It's not right and it's not fair."

Knox stayed at her home in Washington state and watched the verdict through streaming video.

"It really hit me like a train," she said. "I did not expect this to happen. I really expected so much better from the Italian justice system. They found me innocent once before."

Legal experts say there is a chance that Amanda Knox may never see prison time. Italian authorities have yet to put in an extradition request, which could still be denied by the United States