It's likely to be several weeks before it's established how an elderly couple died in south Tipperary.
Gardai now believe 81-year-old Nicholas Smith and his 79-year-old wife, Hilary, died in November or December 2020.
That's over 18 months before their bodies were found in their remote bungalow on Monday.
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Their post-mortem exams were inconclusive yesterday - and gardai are now hoping toxicology reports will establish how they died.
