The sister of a disabled woman who was in her care has been found guilty of her murder.
Lynette Greenop, 40, was also found guilty of assaulting Sharon Greenop at the home they shared in Troon, South Ayrshire.
A murder charge against Sharon Greenop’s daughter Shayla was found not proven at the High Court in Glasgow.
Both women had been accused of repeatedly assaulting and killing 46-year-old Ms Greenop in November 2016.
Lynette Greenop, from Ayr, was told that she will serve a minimum of 23 years in jail before being eligible for parole.
Neither Lynnette Greenop or 20-year-old Shayla Greenop gave evidence during the trial.
Lynnette Greenop showed no emotion as she was found guilty.
Lady Carmichael told her: “Sharon Greenop died after what must have been weeks of pain and fear.”
The court had heard how Sharon Greenop’s body may have lain for weeks before being discovered by police.
A pathologist told the jury that she sustained 19 rib fractures and additional fractures to the neck, but the cause of death was “unascertained”.
Police had been alerted after a neighbour complained of a smell coming from the women’s home.
But when officers turned up at the house, they were told Sharon was “sleeping”.
The jury heard how Lynnette Greenop later confessed to a former neighbour: “Aye, I did it.”
Commenting after the verdict and sentencing, senior investigating officer, Det Ch Insp Martin Fergus, of Police Scotland, said: “This was a sickening and senseless murder of a vulnerable woman within her own home by her sister.
“Her death shocked the local community and Lynette’s actions have left other members of the family absolutely devastated. Understandably, this has been an incredibly difficult time for other members of Sharon’s family.
“Our thoughts remain with the family who have shown great dignity and strength throughout this tragedy.”