A vigil has been held for three siblings who died after they were killed at their home in Tallaght, Dublin in the early hours of yesterday morning.
Lisa Cash, 18, and her eight-year-old twin siblings Christy and Chelsea Cawley, died in an attack at their home in Rossfield Avenue.
A large crowd gathered outside the house to mourn the loss alongside family and friends.
Balloons were released and candles were lit in memory of the trio, as songs were played to the crowd.
Lisa was this morning described by her former principal as "a beautiful young girl" who was "full of integrity".
Principal of St Aidan's Community School Kevin Shortall said the community remains in shock following the killings.
He said Lisa was "hugely, highly regarded" by her school friends and staff.
Speaking on RTÉ's Morning Ireland, he said: "We are all just meeting each other and shaking our heads and giving each other hugs. It's a very difficult morning."
Mr Shortall said that Lisa was a "quiet, beautiful young girl, very diligent and hard-working.
"Lisa got on with her work and was a great support to her friends in times of trouble. I heard that from a number of people yesterday.
"She worked very hard on her Leaving Cert in difficult times during Covid," he added.
Mr Shortall said Lisa was a "lovely, lovely person and a lovely big sister to her brothers and sisters. She was the kind of person you could trust.
"You just feel a sense of loss, but also a sense of urgency and a sense of responsibility to reach out and see what you can do," he added.
Local Fianna Fáil councillor Theresa Costello said the local community is "reeling".
"It's one of the darkest days ever seen in Tallaght.
"The pain and grief is immeasurable. It's so hard to make sense of what happened because there is no sense to it."
Speaking on RTÉ's Today with Claire Byrne, Ms Costello said: "I can’t imagine what it's like in school today, those chairs empty.
"Even standing in the estate and looking at the house yesterday, it was just a horrible, horrible sight.
"I don't think people can process what's happened," she said.
Earlier, the Mayor of South Dublin has said the community in Tallaght is "absolutely devastated" following the deaths.
Fianna Fáil councillor Emma Murphy said it was "horrific news" to wake up to.
Ms Murphy said: "It's something that is going to take this community an awful long time to come to terms with.
"It's something that you don't think is ever going to come to your doorstep. We've three lost lives and the community is absolutely devastated."
Local Sinn Féin councillor Dermot Richardson said there was a "numbness" in the community.
He said a lot of people witnessed "what went on last night. It's traumatic for them."
A 24-year-old man has appeared in court charged with the murders.
Andy Cash, with an address at Rossfield Avenue, was brought before a special sitting of the Dublin District Court tonight at the Criminal Courts of Justice.
