Police are appealing to the public to look out for a convicted murderer who is wanted after failing to adhere to the conditions of a temporary release from a prison in South Gloucestershire.
Terry Game, 50, who was jailed for the murder of Lisa Sullivan in Essex in 2006, was released on temporary licence from HMP Leyhill, but has failed to meet the conditions of that licence, Avon and Somerset police said.
A spokesperson for the police said Game was last seen on the morning of Thursday, August 4 - but failed to comply with a curfew and is now wanted.
Terry Game is white and of large build, with long black hair and nose and lip piercings
He is described as white, with black hair that is sometimes worn in a ponytail. He is of large build, has a beard and lip and nose piercings.
He was last seen wearing glasses, black Adidas tracksuit bottoms, a black t-shirt and black trainers.
He is believed to have links to Hackney, London.
Police said that anyone who sees him is advised not to approach him, but to call 999 immediately. If anyone knows where he is, they should call 101, or with any other information.
Game was found guilty in 2006 of strangling Lisa Sullivan at a caravan park in Walton-in-the-Naze in August 2005.
Lisa was the daughter of blind pop star Lennie Peters, who was a household name in the 1970s as part of the duet Peters & Lee.
Her body was discovered by her 11-year-old son at the Martello Caravan Park in Walton-on-the-Naze in August 2005, while on holiday with her then-boyfriend and three children.
Lisa Sullivan was murdered in August 2005 after a holiday with Game and her three children became increasingly tense
Singer Lennie Peters of the British folk and pop duo Peters and Lee, who died in 1991
Game was 33 at the time, and according to an archived court report from the time the jury was told he had a 'history of abuse and violence towards women he became involved with'.
During a two-and-a-half-week trial, a jury at Basildon Crown Court heard that her partner Terry Game, 33, told police she had accused him of being useless in bed. He said he strangled her in self-defence after she attacked him.
But Judge Philip Clegg said at the trial: said: 'Terry Game has been convicted by a jury of the murder of Lisa Sullivan. I am quite certain that on the evening in question, Lisa Sullivan was the victim of domestic violence.
'I found Terry Game was a bully to the woman who he lived with and in an outburst of violence, a loss of temper, in the early hours of August 3 he took her by the throat and quite literally strangled her.
'It must have been all too obvious that she was fighting for her life but nevertheless, driven by rage, he continued to do so.'
He was jailed for life with a minimum tariff of 15 years. He had been in Leyhill as preparation for his eventual release, but breached the terms of his licence, police said.
A spokesperson for Avon and Somerset police told the public not to approach Game, but urged them to call 999 quoting reference 5222186835, or ring 101 with any other information.