Agents found the basement of Geoffrey Portway's Massachusetts home equipped with a steel cage and a child-sized home-made coffin, in a raid last year.
The 40-year-old had spent months discussing the kidnap and murder online with an American, Michael Arnett.
Portway pleaded guilty to soliciting the kidnap of a child and distribution and possession of child pornography.
His admission on Monday was part of a plea agreement, the US Attorney's Office said. Under the terms he must serve between 216 and 327 months in jail before he is deported to the UK.
Real children
Detectives said Portway used programmes such as Skype to communicate with Michael Arnett over several months, asking him for help with the kidnap and setting out his preferred age range.
They said records of the conversations revealed the two men discussed real children - by name and photo - whom Arnett claimed to know and have access to.
According to US court documents, Portway had solicited several people for help in obtaining a child, including Arnett.
The dungeon was described in detail by Portway in recovered chats as a place he intended to use to keep kidnapped children”
Continued at link --> [
link to www.bbc.co.uk]
Last Edited by Chip on 05/07/2013 07:40 PM