Cannibal killer Matthew Williams lured his 22 year-old victim back to his hotel room after meeting her in a bar before attacking her and eating her face and an eye, it has emerged.
Williams told the woman - named on Friday as Cerys Yemm, a sales assistant at Next - that he would call her a taxi home after meeting her on a night out. But once back at the B&B where he was staying, he launched an horrific attack.
Williams, 34, is reported to have been eating the eyeball and face of the 22-year-old woman, who died of her injuries. Police confirmed they had used a 50,000-volt Taser on Williams.
The 22-year-old died from her injuries at Sirhowy Arms Hotel, a homeless hostel in Argoed, Blackwood, South Wales.
Officers from Gwent Police were called at 1.23am yesterday after reports of a man carrying out a horrific attack on a woman.
A 50,000-volt Taser was discharged, and a 34-year-old local man was arrested.
While under arrest, he became unresponsive and officers and paramedics administered first aid. However, he was pronounced dead at the scene.
Gwent Police said they are treating Miss Yemm's death as murder and are not looking for anyone else and that her family are being supported by specialist officers.
But while the force has refused to comment on the specifics of the incident, sources confirmed she had received substantial facial injuries.
As well as the murder investigation, the Independent Police Complaints Commission (IPCC) watchdog has launched its own probe following the man's death.
A police spokesman said: "The murder investigation is continuing today, officers and crime scene investigators remain at the scene. To confirm, we are not looking for anyone else in connection with the incident.
"We are co-operating fully with the IPCC, which is independently investigating the death of the man. At this time our thoughts are with the families of the deceased following this extremely tragic incident.
"Our officers who attended the incident yesterday are being fully supported by our force occupational health department."
The post-mortem examination for Miss Yemm will start today, although may not be complete for some time. Speculative comments about what happened and cause of death are unhelpful, the force added.