It's the document that could help seal Amanda Knox's fate - or one day - help set her free. Italian judges released a whopping 427 page opinion today explaining why they found the former UW student guilty of murder.

"I mean, it's just bizarre!" says Amanda's mom Edda Mellas.

Three months after they convicted her of murder, why an italian court did it, has Amanda Knox's family scratching their heads, but it's also given them the weapon they needed for a new fight:

"Encouragement," begins Curt Knox. He and Edda are sitting in his West Seattle living room, doing their final interview of the day with Q13 Fox.

"We're encouraged because there's so much there, that you're kind of going, where's the evidence to support what they're saying?" says Edda.

In an opinion hundreds of pages long, the judges who decided Amanda killed her roommate Meredith Kercher say: They believe she and her former boyfriend Raphael Sollecito never planned to kill Meredith never even knew what they were about to get into.

"He basically said this was a chance occurrence," says Edda.

A chance occurrence with this man: Rudy Guede. The judges concluded: Amanda and Raphael got high on drugs, invited him over, then helped Guede when he attacked Meredith right before he killed her.

"It was like, where did that come from?!"

It's a 180 from what prosecutors argued during the trial: They said then that Amanda not only planned to kill Meredith, but masterminded the whole thing.

"You throw out the prosecutors motive and you build your own story that's not supported by evidence," argues Curt. "Explain to me how that's not reasonable doubt?!"

"There's a lot there for her lawyers to go after," promises Edda.

The Knox's say over the next few weeks, they'll be pouring over those hundreds of pages. They have 45 days to file their appeal. And, they'll be talking to Amanda, every Saturday, like clockwork.

"Its, it's tough," both Edda and Curt say almost in unison. "It's really nice to get the phone calls, but when the phone call cuts off, it's tough," knowing her chances of finally coming home just got lot better says Curt.

"The thought of bringing her home this is what it does," adds Edda, as she wipes a way a tear rolling down her cheek.

Amanda will get a copy of the opinion on Friday. Her dad expects she'll be up all night, reading every word and taking notes. Her lawyers are looking to completely reverse her conviction and 26-year prison sentence.