The second brother involved in a work accident this week has died.
Steve Harris (34) passed away in Beaumont hospital this morning at 9am after bravely fighting for his life for two days.
His older brother, Alan (45), died on Wednesday when he was overcome by toxic fumes while working on a sewer in the Drumnigh Wood estate in Portmarnock.
Steve entered the sewer and attempted to save his brother before the gases overpowered him too.
The Harris family have been left reeling with the deaths of the two dads. The pair are survived by their mother Gertrude, four brothers David, Mark, Darren, Derek and sister Grainne.
Derek Harris, a brother, paid tribute today to Steve.
"I've been asked to say a few words. Stephen went by many names to everyone that knew him but to his wife Eve, he was Steve, he was everything and to Nathan, he was simply Dad.
"They loved him and he loved them even more back because everything Steve done was always double what you could give.
"If you were fortunate to meet him, then you would have been the recipient of a Stevie hug and you always went away feeling better.
"Steve died a hero trying to save his brother Alan and to us he will always be our hero.
"From me Steve, you were my best friend and best man. We will love you always."
Tracy Glynn Harris, grieving widow of Alan, made an emotional tribute to her "soulmate", describing him as "one in a million" following his death.
Tracy worked with her husband at his company DrainTech and said her heart had been broken "into a million pieces".
She received the devastating news while in Turkey on holidays. Alan was due to join her this weekend. The couple, married 22 years, have two grown-up children, Nicole and Alan JNR.
"I'm just devastated," Tracy said. "Alan was one in a million.
"He worked hard, he ran a small company and that was his life. his family and his work."
Ms Harris described how the family of four were very close, and that their children "are more like friends".
"We did everything together as a family. My son is just after flying in, he works in Dubai, my heart goes out to the two children.
"I don't know what happened. I just know that Alan went into the tank and we don't know what happened after that," she said.
Ms Harris went on to describe the agonising trip back to Dublin from Turkey.
"Twelve hours in five different airports coming home from Turkey to get home. I cried for 12 hours.
The Harris family grew up in Monasterboice Road, Crumlin in Dublin. Steve, a keen actor, was set to star in an Irish film due out next year.
The art house comedy is called Thank You Come Again.
His heartbroken brother Mark said yesterday that Alan was "a special man".
In a moving tribute on Facebook, he added: "My heart is broken today about the death of one of my wonderful brothers."
A number of investigations into the tragedy are under way.
Alan Harris's funeral is scheduled to take place tomorrow at St Agnes's Church, Crumlin at 10am.