Mark Shirley was found guilty of his latest crime last month
A convicted murderer has been jailed for life for raping a woman seven months after he was released from prison on parole.
Mark Shirley, 39, subjected Helen Stockford, from Bristol, to degrading and humiliating abuse before the rape.
In attacking Mrs Stockford, 40, who has waived her right to anonymity, he tried to re-enact elements of a murder he had committed in Cardiff 22 years before.
Shirley was described by the judge as a highly dangerous man.
He is recommended to serve a minimum of nine years.
Shirley was first jailed for life in 1987, when 16, for murdering a pensioner.
He was found guilty last month of rape, false imprisonment, serious sexual assault, and committing false imprisonment with the intention of committing a sexual offence at Bristol Crown Court.
Helen Stockford talks about her feelings after the court case
In the latest attack Mrs Stockford, a mother-of-five, was held at knifepoint for three-and-a-half hours at her home.
Shirley had been convicted of murdering Mary Wainwright, 67, whose disfigured body was found in her flat in Llanrumney, Cardiff in 1987.
She had been beaten and stabbed and there were ritualistic features to the killing.
Shirley was later jailed for life at Cardiff Crown Court for that murder, but released on parole after 16 years in 2003.
He was later twice recalled to prison for excessive drinking and for carrying a knife but re-released in August 2008.
Seven months after his second release from prison, on 20 March, he raped Ms Stockford in north Bristol, attacking her with a flick-knife.
She gave evidence to the trial jury, saying Shirley told her she was a trusting and sweet lady "like Mary".
For three hours Shirley told her what he had done to Mary Wainwright - the first time he has ever admitted his guilt to anyone.
Mrs Stockford was so terrified that she begged him to kill her quickly. It was only when her son returned home unexpectedly that she escaped with her life.
She left court on Wednesday saying Mary Wainwright was in her thoughts. She said she believed that Shirley should never have been let out of jail.
Mrs Stockford's husband Richard said: "With today's verdict we feel that justice has been done and that this man has been put behind bars once and for all.
"We only wish that he would have some remorse as to what he has done previously and now."
The judge Mr Justice Royce commended Mrs Stockford for her bravery and dignity in bringing Shirley to justice.
The Parole Board, which made the decision to release Shirley from prison, is to carry out a review of the case.
But the Probation Service said that they had followed all procedures and that they could only manage risk, never eliminate it.