STAY TUNED. WE'LL FOLLOW IT. RACHEL BATE ON CAPITOL HILL, THANKS SO MUCH. AND WE NEED TO GET TO SOME BREAKING NEWS. ABC HAS NOW LEARNED THAT THE INNOCENCE HAS TAKEN UP THE NOTORIOUS CASE OF CONVICTED KILLER SCOTT PETERSON AND IS SEEKING EVIDENCE FROM THE TRIAL FOR MONTHS. BRING IN OUR ALEX STONE IN LOS ANGELES. ALEX, I CAN'T BELIEVE IT'S BEEN 20 YEARS SINCE THE DEATH OF LACI PETERSON THAT YOU AND I BOTH COVERED THIS STORY. I WHEN I WAS A REPORTER THERE IN LOS ANGELES. WHAT KIND OF EVIDENCE ARE WE TALKING ABOUT? AND WHERE DO YOU SEE THIS GOING? >> WELL, WE'RE JUST BEGINNING RIGHT NOW, KYRA, TO GO THROUGH THIS DOCUMENT THAT WE HAVE OBTAINED EXCLUSIVELY THAT SHOWS THAT THE INNOCENCE PROJECT IS NOW AT LEAST BEGINNING TO TAKE UP THIS CASE OF SCOTT PETERSON ASKING FOR EVIDENCE FROM THE ORIGINAL TRIAL, SAYING THAT THEY WANT TO LOOK THROUGH THAT EVIDENCE. HISTORICALLY, WHEN THE INNOCENCE PROJECT GETS INVOLVED, THEY ONLY GET INVOLVED IF THEY BELIEVE THEY CAN WIN A CASE. THIS APPEARS TO BE THE BEGINNING STAGES OF THE INNOCENCE PROJECT GETTING INVOLVED. SOME OF EVIDENCE, A LAYOUT OF A BURGLARY NEAR THE PETERSON HOME AROUND THAT TIME, MAKING THE ALLEGATION THAT MAYBE AT LEAST IT'S BEEN OUT THERE. >> WE KNOW THE PETERSON FAMILY TALKED ABOUT IT BEFORE, THAT MAYBE SOMEBODY ELSE COMMITTED CRIME, KILLING LACI PETERSON AND THEIR UNBORN CHILD ON CHRISTMAS EVE IN 2002, THE FINGERS WERE POINTED AT SCOTT PETERSON. HIS FAMILY HAS ALWAYS CLAIMED HE DIDN'T DO IT. >> IT APPEARS WITH THIS FILING THAT THE INNOCENCE PROJECT WILL BE MAKING THAT CLAIM. >> WELL, LET'S JUST GO BACK TO HIS YOUNG WIFE, WHAT, 27 YEARS OLD. SHE WAS PREGNANT. AND ALL THE EVIDENCE AFTER HER DEATH THAT LED RIGHT TO HIM AND WHY HE WAS CONVICTED. >> THERE WAS LOT OF EVIDENCE. AND AS YOU MENTIONED, WE BOTH COVERED IT. WE SPENT A LOT OF TIME IN REDWOOD CITY WHERE THE TRIAL WAS HELD OVER MANY MONTHS. AND THEN THE SENTENCING IN 2005. I WAS WHEN HE WAS ACTUALLY SENTENCED. BUT THE CASE, THE TRIAL IN 2004 ,THERE WAS A LOT OF EVIDENCE THAT CAME BACK TO HIM OF A FISHING TRIP THAT HE HAD GONE ON AND. HER BODY WAS FOUND IN GENERALLY AN AREA WHERE THEY BELIEVED HE HAD BEEN IN THERE. THEY KNEW THAT THAT HE HAD BEEN AMBER FREY, YOU REMEMBER HER NAME COMING INTO ALL OF THIS AND HER TESTIMONY AND INFORMATION THAT CAME INTO IT. THERE WAS QUITE A BIT OF EVIDENCE TO CONVINCE A JURY. NOW, IN THE LAST YEAR OR SO. HIS FAMILY AND HE HAVE REALLY MADE THE CLAIM THAT HE IS INNOCENT. THEY GOT HIS DEATH PENALTY SENTENCE TOSSED OUT OVER MISCONDUCT. HE HAS CLAIMED THAT ONE OF THE JURORS, ACTUALLY ONE WHO WAS QUITE WELL KNOWN AT THE TIME WITH BRIGHT PINK AND BRIGHT RED HAIR THAT SHE HAD NOT DISCLOSED SOME THINGS WHEN SHE GOT ON THE JURY. AND THAT WOULD HAVE MADE A DIFFERENCE. THE ENDED UP GIVING HIM LIFE IN PRISON A NUMBER OF MONTHS AGO OF THE DEATH PENALTY GOING OFF OF DEATH ROW, WHICH IS STILL TECHNICALLY AT SAN QUENTIN, EVEN THOUGH THEY PRETTY MUCH DISBANDED DEATH ROW IN CALIFORNIA. SO THERE'S BEEN A LOT OF CHANGES TO HIS CASE HERE IN THE LAST YEAR OR SO. BUT THIS IS A BIG DEVELOPMENT. YOU THE INNOCENCE PROJECT IS GETTING INVOLVED, APPEARS TO BE ASKING FOR EVIDENCE TO BEGIN MAKING A CASE THAT EITHER HE SHOULD