A mum to three children who were killed in their own home says "every day is getting harder" as she tries to come to terms with their death.

Twins Christy and Chelsea Cawley, eight, and their older sister Lisa Cash, 18, died during an incident at their home in Rossfield Avenue in Tallaght, South County Dublin, Ireland on September 4.

Devastated mum Margaret Cash McDonagh, known as "Twink", paid an emotional tribute to her kids on social media and said she will always remember them for the rest of her life.

“Goodnight my three beautiful children. My two lovely girls and my handsome son," she wrote.

“I love and miss you all more everyday. Mommy’s three angels forever.”

Just days ago, in another post on social media, the heartbroken mum told how life will never be the same following the devastating loss, the Irish Mirror reports.

Lisa Cash, 18, and her two younger siblings, eight-year-old twins Christy and Chelsea Cawley (
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“My three lovely angels. I will love and miss you for the rest of my life," she added.

“Everyday is getting harder without you. Mommy loves you,” she wrote in a post on Instagram over the weekend.

Margaret’s tribute to her three children comes as her son Andy Cash, 24, remains on remand in prison charged with their murder.

Mr Cash last appeared in court on September 9, where he was further remanded into custody.

Mourners walk behind three horse-drawn hearses carrying the coffins of the three children (
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He appeared before Cloverhill District Court via video link from the Midlands Prison in Portlaoise and did not comment when asked to confirm his name.

He is set to appear before the court again on October 6 for directions from the Director of Public Prosecutions.

During the children’s funerals earlier this month, the congregation were told that Lisa's eight-year-old siblings Chelsea and Christy were her "whole life" and that she was the "mammy" of her friend group.

Eight-year-old twins Christy and Chelsea Cawley (
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Lisa Cash, 18 (
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A huge crowd gathered after the three white coffins were brought by horse drawn carriages to St Aidan's Church in Tallaght on September 9.

An emotional friend of Lisa said the group don't know how they will go on without her but that she was dedicated to looking after her younger siblings.

"I will never forget you," she said.

"My heart is completely shattered. You were my best friend. You were the mammy of the group. How are we meant to do this without you?

Andy Cash, 24, is accused of three counts of murder at an address in Rossfield Avenue in Tallaght, Dublin

"You had so many plans for your future. A piece of my heart is completely broken. There were your whole life. You were always there for them and when you weren't there you were talking about them."

Chief celebrant of the mass, Father Paul O'Driscoll, spoke of the community’s heartache and added: “Bereft of words, all of us hold the same question, how could this be happening?”

Mum Margaret Cash McDonagh says her life will never be the same (
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And commending the children’s 14-year-old brother, Mikey, for raising the alarm he went on: "Your bravery and strength to raise the alarm, to go and get help is an inspiration of courage and love."

The children were later laid to rest together at Bohernabreena Cemetery after the moving and heartbreaking ceremony.