CLEVELAND -

When Angel Cordero heard Amanda Berry frantically screaming for help he jumped into action.

"I go by the door. I said, 'What happened?' She said, 'I've been kidnapped for 10 years, call the police,'" Cordero said.

His heart was racing when he got to the door. He was afraid, not knowing if he was in danger himself.

Read more: Three abducted women reunited with families

Cordero started kicking the door. He was able to pry it open just enough for Berry to escape.

"When Amanda came out, she said, 'I need to call the police. He's coming back. He went to McDonald's for food, but he coming back. I need the police,'" said Cordero.

Within minutes, police showed up and a 10-year-old mystery was solved. Michelle Knight, Amanda Berry and Gina DeJesus all were found safe. Berry had a daughter during the captivity. The 6-year-old was rescued, too.

"Amanda was dirty. The daughter didn't have any clothes," said Cordero.

He said the women did not look good.

The home on Cleveland's west side belongs to Ariel Castro. He was arrested along with his two brothers Pedro and Onil.

Cordero now is one of the main witnesses in the investigation. He says FBI agents gave him a glimpse of what the women endured. He says they were raped and beaten, and chained to a bed.

The basement was sound-proof. No one heard the girls screaming for help.

Until Monday night when Angel Cordero came to the rescue.

Cleveland house described as home of horrors

THE HOME SO HE DID NOT HAVE TO BREAK IN. THREE THREE WOMEN ARE CELEBRATING THE FIRST DAY OF FREEDOM AFTER BEING HELD CAPTIVE FOR THREE LONG YEARS. THEY WERE RESCUED FROM A HOUSE IN CLEVELAND WHERE THEY WERE CHAINED IN THE BASEMENT THE MEN ACCUSED OF KIDNAPPING THEM AND HOLDING THEM AGAINST THEIR WILL FOR A DECADE. THEY ARE PEDRO CASTRO, ARIEL CASTRO AND ONIL CASTRO, THREE BROTHERS ALL NAMED AND ARRESTED IN THIS HORRIBLE CRIME. OUR CHAUNCY GLOVER IS LIVE TONIGHT IN CLEVELAND, AND YOU HAVE LEARNED MORE ABOUT WHAT HAPPENED IN THAT HORRIBLE HOUSE, CHAUNCY. Reporter: GOOD EVENING, RUTH. PEOPLE ARE CALLING IT THE HOUSE OF HORRORS. NOW LET ME SHOW YOU WHAT IS GOING ON. WE ARE RIGHT HERE ON SEYMOUR AVENUE WHERE THE HOME IS, WHERE THE THREE WOMEN AND 6-YEAR-OLD GIRL WERE RESCUED. DOZENS OF NEIGHBORS TRYING TO SEE WHAT IS GOING ON OUT HERE. FBI INVESTIGATORS ARE OUTSIDE THE HOME AND ALSO INSIDE INVESTIGATING. AND THERE IN THE DISTANCE, YOU SEE ALL THOSE FOLKS STANDING THERE. THEY ARE REPORTERS, PHOTO THEY ARE REPORTERS, PHOTOGRAPHERS AND PRODUCERS. PEOPLE HAVE COME FROM ALL OVER THE WORLD. I EVEN SPOKE WITH A YOUNG REPORTER FROM LONDON. THIS IS A BIG STORY. BUT IT IS ALSO UNBELIEVABLE. TEN YEARS, THREE WOMEN, TORTURE, A LIVING HELL, AND THERE IS A HAPPY ENDING. AMANDA SAY, I NEED HELP, I NEED HELP. AND ME CROSSING THE STREET. ME GO OVER THERE -- WHAT HAPPENED. I KIDNAPPED BY TEN YEARS. Reporter: A FRIGHTENING ESCAPE. THEN THE FRANTIC CALL TO 911. I NEED POLICE. WHAT'S GOING ON THERE. I HAVE BEEN KIDNAPPED AND I HAVE BEEN MISSING FOR TEN YEARS AND I AM -- I AM HERE. I AM FREE NOW. BLOOD-CURDLING CRIES FOR HELP, AND ALL YOU SAW WERE GUYS RUNNING AND PULLING AND OUT COMES THIS WOMAN AND A KID. AND SHE IS SCREAMING HYSTERICALLY. Reporter: AND WHEN POLICE ARRIVED, A DECADE OF IMPRISONMENT FOR AMANDA BERRY, GINA DeJESUS AND MICHELLE KNIGHT WAS OVER. THE WOMEN DISAPPEARED WITHIN A FEW YEARS OF ONE ANOTHER. BERRY FROM HER JOB AT BURGER KING IN 2003. DeJESUS A YEAR LATER ON HER WAY HOME FROM SCHOOL AND KNIGHT IN HOME FROM SCHOOL AND KNIGHT IN 2002. NOW THE HOME ON SEYMOUR IS BLOCKED OFF. FBI AGENTS INSIDE SEARCHING FOR EVIDENCE. SOURCES SAY THE CAPTIVITY WAS A LIVING HELL. THE GIRLS WERE CHAINED, BEATEN AND RAPED. THE BASEMENT WAS SOUNDPROOF SO NO ONE COULD HEAR THEM SCRE NO ONE COULD HEAR THEM SCREAMING. AT FIRST HE DIDN'T CLOSE NOTHING UP THERE. AFTERWARDS HE STARTED CLOSING EVERYTHING UP AND I SAID THERE IS SOMETHING WRONG THERE. Reporter: BUT NEIGHBORS DID SEE ARIEL CASTRO AND HIS BROTHERS PEDRO AND ONIL IN AND OUT OF THE HOUSE. THEY ARE NOW IN JAIL. Reporter: NOW THE INVESTIGATION IS JUST BEGINNING. I AM TOLD FBI AGENTS WILL BE HERE FOR MOST OF THE NIGHT. THEY ARE STILL A LOT OF QUESTIONS REMAINING IN THIS INVESTIGATION. I AM TOLD THE THREE WOMEN, AS WELL AS THE 6-YEAR-OLD GIRL, THEY WERE TAKEN TO A LOCAL HOSPITAL LAST NIGHT, EXAMINED AND RELEASED. THEY ARE NOW WITH FAMILY MEMBERS AT A SECURE LOCATION. WE ARE LIVE IN CLEVELAND THIS