Family of Welsh cannibal murderer are 'in complete shock': Matthew Williams died after being shot by Taser
The family of a man who reportedly murdered a 22-year-old woman in an act of cannibalism say they are in "complete shock".
Cerys Marie Yemm died from her injuries at Sirhowy Arms Hotel, a homeless hostel in Argoed, Blackwood, South Wales, on Thursday.
Her attacker, 34-year-old Matthew Williams, who had recently been released from prison, also died at the scene shortly after police discharged a 50,000-volt Taser and arrested him.
His family told the BBC they were "devastated by the death of an innocent young lady".
"Our thoughts and prayers at this time are with the victim, her family and friends. Words cannot express our grief."
Gwent Police said that while under arrest Williams became unresponsive and officers and paramedics administered first aid but he was pronounced dead.
As well as the murder investigation, the Independent Police Complaints Commission (IPCC) watchdog has launched its own probe following the man's death.
An IPCC spokesman said: "The man who who died in the incident near Blackwood has now been formally identified as 34-year-old Matthew Williams.
"Mr Williams was a resident of the Sirhowy Arms Hotel in Argoed.
"The IPCC is investigating the circumstances surrounding the death of Mr Williams.
"A post-mortem is being carried out today."
The IPCC added it was usual practice for this kind of an investigation to take place following any death in police custody.
Officers are treating Miss Yemm's death as murder and are not looking for anyone else. Her family, and officers who attended the incident, are being supported by specialist officers.
Police have refused to comment on the specifics of the incident, but sources confirmed the victim suffered substantial facial injuries. A spokesman said: "The murder investigation is continuing. To confirm, we are not looking for anyone else in connection with the incident."
Miss Yemm, who worked in sales at Next, was described as a fun-loving young woman who had been at a Halloween party with friends just days before the attack.
It is believed she met her attacker through mutual friends.
Scores of tributes have been paid to Miss Yemm, whose family and friends have been left devastated by her death.