AN argument between two women led to the murder of a young Dublin mum, gardai believe.
A 20-year-old woman has been arrested over the death of mum-of-one Brigid 'Bernie' Cash (20).
Senior sources are working on the theory that this was a spat between two women that "went very badly wrong".
"This started out as an argument and then progressed to slagging over children," a source told the Herald. "It then spiralled into a situation where the two ladies were pulling each other's hair and ears."
Ms Cash was found dead at 10.40am yesterday at the house on Warrenstown Walk, Blanchardstown. It is understood she died after being kicked in the head.
Three other people were also being questioned over the incident last night.
The 20-year-old female suspect -- who is also a member of the Travelling community -- handed herself into Blanchardstown Garda Station voluntarily yesterday afternoon.
After a period of questioning gardai decided to arrest her.
Senior sources are working on the theory that Ms Cash received fatal brain injuries after being kicked a number of times in the head. "The dispute escalated to the point where Ms Cash received a number of kicks to the head which led to her death," a source said.
"This is now a murder investigation."
Ms Cash is originally from Greystones, Co Wicklow, while the suspect is a homeless woman originally from Blanchardstown who is known to gardai.
Last night three other people were still being questioned at Blanchardstown Garda Station about the events of the night.
They are all understood to have been in the house at the time and they are not under arrest -- they have been speaking voluntarily to detectives since yesterday morning.
The murder victim, Brigid 'Bernie' Cash, had also suffered a brutal attack in the weeks before her violent death, her mother told the Herald.
The mum-of-one had been savagely scalded and beaten in a brutal attack just weeks before she was killed.
Her body was found with head injuries in the living room of the house in Warrenstown Walk in Blanchardstown in Dublin at 10.40am yesterday.
She had been dead for several hours.
Her mother Brigid told the Herald: "She was terrified and was hiding out. I had spoken to her on the phone a few days ago but I was going to report her missing to the guards this morning."
She said her daughter was strikingly good looking. But a recent violent attack resulted in her suffering severe scalding all over her body, her ankle had been broken, and her two eyes had been heavily bruised.
"She was a beautiful, good looking girl that looked just like the actress Elizabeth Taylor. I used to brag about her all the time," her distraught mother said.
"But when I saw her in the hospital waiting for skin grafts and her two eyes closed and she couldn't talk...she looked like 'The Elephant Man.'"
"I hope they find who killed her. We want justice," she said.
Fighting back her tears, she said her daughter had been separated from her husband but the couple were on good terms and it was hoped one day they could get back together.
"Bernie lived for her little boy, Michael. He was all she wanted," she said.
The grieving mother broke down in tears several times as she spoke about her beautiful daughter.
She said that all her family always called her daughter Bernie although her official name was Brigid.
"She was named Brigid but we called her Bernie since the holy nuns in Kilmacud told us we should call her after Saint Bernadette," she said.
She spoke to the Herald at the home of her mother, Bernie's grandmother Brigid O'Brien (70) who lives in Mulhuddart.
Ken Foy and Alan O'Keefe