There's a very interesting programme on right now here, on one of the satellite crime channels. It's the case of Peter Reilly, who was convicted of killing his own mother in the 1970s, when he was aged 18. He discovered her body, but was "persuaded" by the police that they had the goods on him, and that he was the perpetrator. Following lengthy interrogation (including Miranda warnings and refusal of legal counsel), he confessed to brutally stabbing and mutilating his mother, despite his constant refrain that he didn't remember a thing about committing the crime. The police suggested that he had attacked his mother in a subconscious rage, and that he had psychologically blanked out the event from his mind. They also said that if he confessed, they would get him treatment rather than punish him.
He spent many years in prison after his conviction, before an appeal (championed by the playwright Arthur Miller) revealed that the prosecution had hidden exculpatory evidence. Reilly was released, and almost certainly did not have any hand in the death of his mother.
http://www.truthinjustice.org/peter-reilly.htm
Much of the "confession" statement by Reilly (which, incidentally, was taped by the police) looks, sounds and feels almost identical to the Knox statements from the 6th November. Like Knox, Reilly signed a write up of his verbal confession, and, like Knox, he recanted the entire statement within days.
Incidentally, we have our very own true crime story playing out here right now. A guy named Raoul Moat, who apparently shot his ex-girlfriend and killed her new boyfriend, then shot a policeman, has been discovered by the police after being on the run for several days. He's now cornered by a river, and is holding a shotgun to his throat. Moat has most likely been living off the land while he's been on the run - maybe he had someone to help him when he went "into the forest".....