Castro has been under arrest since Monday, when Berry broke out of his run-down house and called 911 while he was away. Police found the two other women inside. The women had vanished separately between 2002 and 2004 when they 14, 16 and 20.
Berry and former captive Gina DeJesus, 22, went home with relatives on Wednesday. Knight was reported in good condition at a Cleveland hospital.
The police report gave a detailed account of their escape, beginning with Berry's discovery that a door was unlocked, leaving only a bolted outer door between her and freedom.
Berry feared it was a test: She said Castro occasionally left a door unlocked to test them. But she called to neighbors on a porch for help and was able to get out.
Police then entered the house and found the other women, who threw themselves into the officers' arms.
Castro's two brothers, who were arrested with him but later cleared of involvement in the kidnapping case, appeared in court on unrelated charges Thursday and were released.
Ariel Castro's former daughter-in-law, Monica Stephens, told The Associated Press that her former husband said Castro had an extremely violent nature.
"He was always described to me as a violent, just a scary violent person," Stephens said.
"He talked about how his father had beaten him and his mother severely. They were like hostages in their own house. They were locked in," said the woman, who now lives in Florida.
A musician who often practiced at Castro's house said he was there last week and heard noises, "like banging on the wall." Ricky Sanchez said he asked Castro about it, and he blamed it on the dogs. He also said Castro - a bass guitarist in merengue and salsa bands - liked to play his music loud.
On his most recent visit, Sanchez said, a little girl came out from the kitchen and stared at him but didn't say anything. He said he also noticed there were four or five locks on the outside door.
"When I was about to leave, I tried to open the door. I couldn't even, because there were so many locks in there," he said.