Emma Winnall dies after attack in Birmingham home
A 93-year-old woman attacked in her home has died of complications arising from her injuries.
Emma Winnall suffered a fractured skull, a broken arm and wrist and a partially severed finger in the attack in Birmingham overnight on 30 April.
She has been in intensive care since being found at her home in Moseley and died on Tuesday morning.
Two people have been arrested but have been released on bail. Police said it was now a murder inquiry.
Det Supt Richard Baker of West Midlands Police said it was "desperately sad news".
"Clearly, this has now become a murder inquiry.
"But given the extent of Emma's injuries, combined with her age and vulnerability, this investigation has always been treated with the same level of seriousness as a murder investigation."
The arrests made earlier in the inquiry were in connection with assault, he said.
The two people arrested were a 56-year-old woman and a 28-year-old man from the Hall Green area of Birmingham.
"This was a shocking attack on a defenceless, elderly woman as she slept in her own bed," he said.
"No-one capable of carrying out such a despicable attack deserves protecting."
He appealed for anyone with information to contact police.
Det Supt Baker said police had been able to speak to Mrs Winnall, a widow, in hospital on two occasions after the attack and the information she provided would form part of the investigation.
Shortly after the attack Mrs Winnall's daughter, Joyce Blencoe, also asked for the public's help to finder her mother's attacker.
"To see your mum viciously beaten and covered in blood is the most horrific nightmare," she said.
"It's broken my heart to hear my frail and defenceless mum manage to say that she was screaming for help and no-one came."
A £5,000 reward has been offered by the Crimestoppers charity for information about the attack.