The family of missing Finglas grandfather Thomas Kennedy who disappeared almost five months ago have said they are dreading Christmas without him.
The 82-year-old went to put out the bins at his home in Virginia Park at around 9pm last July 29 and has not been seen since.
Despite extensive searches, a poster campaign and following-up numerous potential sightings, his whereabouts remain a mystery.
"It would have been nice if there was some news before Christmas, but we just don't know what happened," said his son, Vincent.
"You go through different thoughts. If our father was alive you would think he would turn up somewhere, and if he had died you would think he would have been found.
"There is no reason for anything sinister to have happened, and no proof of it either, so we are just left stuck, knowing nothing.
"We look out the gate and wonder did he go left or go right. We literally don't know. It's as simple and frustrating as that."
Mr Kennedy added that their thoughts are with all the other families who are in the dark about missing loved ones.
"We're not the only ones," he said. "There are many others who have faced numerous Christmases and New Year's Days wondering, and we think of them all at this time of year and hope they can get some peace or an answer."
"Even if it was the case that dad had died, we would rather know. That way we could grieve, have a funeral and remember him instead of wondering if he's wandering around somewhere confused or agitated."
Mr Kennedy said gardai had followed-up more than 250 potential sightings of his father. The possibility that he may have got a taxi to Baldoyle has also been checked, but to no avail.
"All of Finglas and all of Baldoyle have been searched, but nothing has been found," he said.
The missing man's grandchildren have been told their grandad is in hospital, because the family do not know how to adequately explain his absence.