Thomas was convicted of murder Police are hunting a convicted murderer who has absconded from an open prison near Usk, in Monmouthshire.
Wyndham Richard Thomas, 33, was convicted for aggravated burglary and murder in 1998 and was serving a life sentence at HMP Prescoed.
He is described as white, five feet seven inches tall, medium build with a scar on the right side of his forehead.
It is believed he has contacts in the Caerphilly and Maesteg areas.
Members of the public are advised not to approach Wyndham Thomas and to call Gwent Police on 01633 838111.
Thomas, from Croeserw, was convicted along with two others, Alan Naylor and Christopher Chislett, who together had been breaking into a house in Maesteg in July 2007.
Taxi driver Christopher Williams was fatally stabbed in the heart after he confronted the trio when he returned to find them burgling his house.
His fiancée and their young daughter were both asleep in the house at the time.
Mr Williams, called a “decent and brave young man” by the trial judge, had chased the men down the road and was killed during a fight with Chislett and Naylor.
The judge in the original trial concluded that Chislett had inflicted the fatal wound but Naylor had also been armed with a knife.
Thomas knew both men were armed with knives and might use them in the event of a confrontation, the judge at Swansea Crown said at the end of the trial in 1998.
This article is from the BBC News website. © British Broadcasting Corporation, The BBC is not responsible for the content of external internet sites.