A judge in Wales has imposed life imprisonment on the man who murdered Co Offaly vet Catherine Gowing last October.
Clive Sharp, 46, and from Gwynedd, had pleaded guilty to the offence.
He had been in a relationship with Ms Gowing's Irish friend and housemate at the time of the murder.
The court was told that Ms Gowing was tied up and raped before her murder after Sharp broke into her house in Mold.
He was detained after evidence gathered from mobile phone information and CCTV, and DNA found on the body of his victim.
The court heard details of the dismembering of Ms Gowing's body.
Sharp has a previous conviction for rape in 1983.
He will serve a minimum period of 37 years before he can be considered for parole.
Mr Justice Griffith Williams described Sharp as a very serious danger to women.
The judge said he had carried out a horrific, cold-hearted murder to gratify his perverted sexual desires.