Killer who beat neighbour gran to death had been released from jail a year earlier for murdering two sisters in 1995

Previously, Bierton murdered sisters Elsie Gregory, 72, and Aileen Dudhill, 79, at their home in Rotherham, South Yorkshire, in 1995.

The vicious killer bludgeoned one woman to death while the other was stabbed.

Paramedics found Pauline dying in her bungalow last November after concerns were raised when she could not be reached.

Bierton was then arrested 30 miles away the next morning. He had been driving Pauline’s car.

The heartless thug looked emotionless as he pleaded guilty to murdering mum-of-three Pauline via video link.

He also admitted a second charge of theft, which replaced an original count of robbery.

Pauline’s neighbours said they didn't know Bierton was a convicted killer when he moved in to their street.

But they said he had been terrorising them with late-night drugs calls and demands for cash.

Judge Dickinson told Nottingham crown court: “Mr Bierton was living at that address with permission of people supervising his life.”

It comes after devastated relatives from Pauline's family paid heartfelt tributes to the friendly grandma when she was found dead in November.

Det Insp Steve Wragg, of Nottinghamshire Police: “Bierton is an extremely violent and dangerous individual who is now facing a life sentence for this appalling attack.”

Bierton will be sentenced by a High Court judge on June 10.