The couple were originally from England.
Milk found at the house of a couple whose bodies were discovered in Tipperary, has indicated they could have died in late 2020.
The bodies of 81-year-old Nicholas Smith and his 79-year-old wife Hilary are now believed to have gone undiscovered for more than 18 months.
Gardaí are looking to speak with the last person they were in contact with, in the hopes of establishing a concrete timeline.
Locals in the area have said the couple were private people who kept to themselves.
It was believed the couple had moved back to England, where they were originally from.
Southern Correspondent with the Irish Independent Ralph Riegel says it's also hoped a toxicology report will provide more clarity:
8 Men Handed Down Sentences For Their Roles In €157 Million Drug Operation
Castletown House Parklands To Open From Dawn To Dusk Following Meeting With Minister Boxer Moran
Rathangan Resident And Father Dies In Workplace Accident
Conor McGregor Refused Planning Permission To Build Mansion In Straffan
Celbridge Schools to Pilot New Single Secondary School Application System
Liverpool Forward Diogo Jota Dies In Car Crash
McGregor's Withdrawal Of Evidence To Be Referred To The Director of Public Prosecutions
Emeis Ireland Pauses All Nursing Home New Admissions Including Five In Kildare
