A convicted killer jailed for life for subjecting a disabled woman to an hour-long rape ordeal has absconded from a mental health centre.
Police have launched a manhunt after Samuel Lee, 44, failed to return from an authorised trip from the John Howard Centre in Hackney, east London.
He is serving a life sentence after being convicted in 2006 of snatching a 31-year-old cerebral palsy sufferer in Finsbury Park, north London, as she returned from a shopping trip late at night, and raping her in 2000.
Just a decade earlier, in 1989, he was jailed for manslaughter after he stabbed a man to death.
Police are warning the public not to approach Lee, who they warned could turn "violent".
Lee, who is black, of stocky build and 5ft 9ins tall, suffers from Schizotypal disorder which is a mild form of Schizophrenia.
He was last seen on CCTV at Kennington Underground Station on the evening of his disappearance last Thursday wearing a thick black nylon jacket with a grey 'Everlast' Jumper, grey trousers and yellow and grey trainers.
Police believe he may have links to Sussex.
Detective Sergeant Paul Ridley, from Hackney Violent Crime Unit, urged anyone with information about Lee's whereabouts to contact officers.
He said: "Tracing Mr Lee is a priority for my officers and I would like to reiterate that members of the public should not approach him.
"Previous incidents have shown that he has the potential to become violent and he could pose a threat if confronted.
"If you see him please call police immediately on 999 so that officers can take appropriate action."
Lee's escape comes after a string of dangerous convicts have absconded from open prisons while on day release.
Violent armed robber Michael Wheatley, dubbed the "skullcracker", was jailed for life earlier this week for raiding a Surrey building society while on the run from an open prison.
And convicted murderer Arnold Pickering, 44, has been charged with absconding from HMP Kennett after visiting Liverpool on licence earlier this month.
The escapes sparked a political row and Justice Secretary Chris Grayling has vowed to tighten rules surrounding prisoners' trips out from open prisons.