Mark O'Sullivan was the greatest son a mother could have, mourners at his funeral were told today.
A letter read out on behalf of friend Sharmila Rahman, who studied with the 26-year-old, said there was an "unbreakable" bond between Mark and his mother Anne.
“I struggle to put into words just how amazing Mark was as a person," she said.
"Saying he was amazing seems like an injustice to who he really was.
“He was charming, funny, caring, kind, selfless, hardworking, honest, intelligent, but also so much more.
“Words can't describe Mark."
“There are no words to describe the person but anyone who knew him knows that they were blessed to have them in their lives and how incredible he was.”
She added: "Mark had such a big heart and so much love to give.
“As a friend, I know that but I can't begin to imagine how much effort and love he put into being Anne's son.
“Mark was the most caring selfless person I've ever met - so caring and selfless that he earned a nickname Mother Mark.”
Mark's life and death has changed everyone who knew him, mourners were also told.
Fr Tony Bluitt said of Mark, who was shot dead on Monday, that nobody who knew him will ever be the same again.
“One would imagine that life was full of possibilities for him,” he said.
“One could also say that Mark touched many people’s lives along the way as he journeyed through life.
“His life and death have changed you all and you will never be the same again.”
The chief celebrant said mourners had gathered to “make sense of the senseless” at the law graduate’s private family funeral at the Church of the Immaculate Conception, Kanturk, north Co Cork.
And he said those at the service, which was streamed live over the internet, were not there to “minimize the loss of their lives by trying to provide easy answers”.
The Parish Priest of Kanturk, Lismire and Castlemagner said this was important because “there are no answers”.
Repeating what he said at the funerals yesterday of Mark’s brother Diarmuid, 23, and his father Tadg, 59, he said: “Grief is never an easy burden to bear – and never more so when it comes to us in an untimely, shocking and tragic way.
He said he was repeating what he said yesterday “because the reality of this heartbreaking loss has not changed”.
Fr Bluitt, who co-celebrated with Fr John Magner, added: “The shock, the numbness, the devastation, was impossible to imagine and the unfolding news of the loss of three lives was incomprehensible.
“Just like all of you, I too am struggling to make sense of this life-changing tragedy.”