It was just a few minutes after four on the day before Christmas that Dana took off down this country road on her bicycle.

Based on the evidence, someone in a pickup truck forced her off the side of the road and then abducted her.

Christmas Eve, 1991.

On Hawaii's Big Island, 23-year-old Dana Ireland went for a bike ride and never came home.

Hours later, she was found brutally injured in a remote area,

her life slipping away with every minute that passed.

And by 12.7 a.m., in the early hours of Christmas morning,

Dana was gone. Her death shook the community of Vacation Land, Hawaii, and the entire Big Island to its core. And the police needed to get

answers quickly, no matter how they got them.

They already came to the conclusion in their mind

that we're going to railroad the Switzer brothers and that's it.

There's a lot of dealmaking going on

because to have such a big lie like this,

everybody got to be on the same page.

I'm Amanda Knox.

I know what it's like to be trapped in the nightmare of being wrongly accused

and the years it takes to vindicate yourself,

in the eyes of the law,

in the eyes of an unforgiving media,

and a judgmental public.

I lost half my life.

Lost half my life. Lost half my life.

...