This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

CLEVELAND — “Chains and ropes” were among the several hundred items that have been removed from Ariel Castro’s home by an FBI recovery team, Cleveland Police Chief Michael McGrath told Fox 8 News.

“A thorough search of the scene at 2207 Seymour Avenue did not reveal human remains,” said Cleveland Safety Director Marty Flask.

A short time later, another shocking development: police sources told the FOX 8 I-Team on Wednesday that they found a letter written by Ariel Castro inside his home detailing his involvement with the three women.

Those startling details emerged on Day Two of an extensive search of Castro’s Seymour Avenue property. That’s where FBI agents and other investigators are looking for evidence of unimaginable horror: were other babies besides Amanda Berry’s 6-year-old daughter born there?

Crews searched Castro’s backyard all afternoon on Tuesday; they were still there Wednesday morning. Investigators will now discuss the next course of action and review the evidence, a city news release said.

The questioning of the three girls continues, but officials are being delicate with them in their traumatized state. McGrath says he has not yet spoken with the three rescued women.

Some of the women are being reunited with their families. Amanda Berry returned home Wednesday to a cheering street filled with family members, friends and media members.

Police said they expected Berry to speak after her return, but her sister said she was not yet ready.

“We are so happy to have Amanda and her daughter home. I want to thank the public and the media for their support and encouragement over the years. At this time, our family would request privacy so sister and niece and I can have time to recover,” Beth Serrano told reporters.

Meanwhile, Cleveland police have asked a judge to extend the normal 36-hour period for criminal charges to 48. They have until early Wednesday evening to present the case to the Cuyahoga County Prosecutor.

Officials also want to make sure Ariel Castro and his brothers are properly investigated before deciding on appropriate charges.

*For extended coverage on this story, click HERE.

In Castro’s Seymour Avenue neighborhood, residents are still in stunned disbelief of what has transpired over the last few days. How could they not have known that these young women were held prisoner for a decade? What could they have done to help?

Those are some of the questions investigators hope to help them answer in the ongoing investigation.

The case has garnered international attention, with media outlets from around the world camped out across Cleveland’s west side.

Stick with Fox 8 News and for continuing coverage. Also, follow along for real-time updates in our live blog, below: