(ABC NEWS) -- Three kidnapped women who were imprisoned for a decade were held in dungeon-like conditions, separated from each other in locked rooms, and one woman was forced to deliver her captor's baby in an inflatable swimming pool, authorities told ABC News.
The only access to the women's cell-like rooms were slits cut in the doors, Cleveland City Councilman Brian Cummins told ABC News.
Chains, locks and lengths of rope were discovered inside the Cleveland home on Seymour Avenue, police said.
In court documents released today, police stated that Ariel Castro, 52, who owned the home where the women were held, was arrested for the "kidnapping and sexual abuse" of the women.
His two brothers Onil Castro, 50, and Pedro Castro, 54, are accused of complicity in the women's abductions and abuse. All three men are expected to formally charged sometime today.
The women, Michelle Knight, 32, Gina DeJesus, 23, and Amanda Berry, 27, as well as a 6-year-old daughter Berry conceived while in captivity broke free from the home on Monday evening, screaming from behind a locked door until neighbors helped kick down the door.
Berry gave birth to her daughter Jocelyn in an inflatable swimming pool, Cummins said.
FBI investigators completed their search of the home Tuesday night, Cleveland Police Chief Michael McGrath told ABC News.
Interrogators have begun questioning the freed women and the three suspects.
"The interview process with the victims and the suspects started last night and is continuing this morning," McGrath said. "The investigative team will come together later today and package what they have and present it to the city prosecutor."
Neighbors describe Ariel Castro as friendly, often seen outside tinkering with cars and even attending vigils for the missing girls. Family members and court documents show a different side of the suspect.
Castro was violent, according to family members of his late wife Grimilda Figueroa. Speaking on condition of anonymity, a family member called him a "a monster."
Ariel Castro "was nice when he was outside but behind closed doors he was an animal. Two faced. He had done terrible things to [Grimilda] and treated her like trash," the source said.
Castro, a fired school bus driver, was arrested in 1993 on a domestic violence charge that was later dropped.
All three women and the girl, Jocelyn, were taken to Metro Medical Center on Monday night. DeJesus, Berry and Jocelyn were discharged and reunited with their families on Tuesday. Knight remains in the hospital in "good condition," according to authorities.
The women, McGrath said, are currently "doing very well under these circumstances."
"It really is amazing," he said. "It has to be a tribute to the girls to be perfectly honest with you. They must be some really, really strong individuals."
The women were given a brief reprieve to meet with the friends and family members who have searched for them for a decade before a specialized unit of FBI agents trained in questioning victim-witnesses began interviewing them.
Since being discharged from the hospital, Berry and DeJesus were taken to safe houses and given FBI protection. On Wednesday morning Berry and her daughter were taken to her sister's home.
"We appreciate all you've done for us for past 10 years," Berry's sister Beth Serrano told the media gathered outside her home. "We are elated."
Later in the day Gina DeJesus was brought home and reunited with her family.
Family members said they have been calling and visiting with the women, who some people gave up for dead years ago.
"I didn't think she was dead. No, never," Berry's father John Berry said. "Keep hope. Keep hope. Don't give up till you know because I never gave up."
All three women were abducted independently between 2002 and 2004. Berry vanished in 2003 when she was 16 while on her way home from a job at Burger King.
DeJesus, then 14, disappeared the following year while walking home from school