DNA evidence was used to identify the body of a man who was discovered after his neighbours alerted the landlord to a smell emanating from his studio bedsit.
Ian White (61), who was originally from Jersey but had been living in Ireland for at least a decade, was found dead just inside the doorway of the flat on the Ballybough Road in Dublin 3 on August 26 last year.
Dublin Coroner's Court heard that he may have been there for up to two weeks before he was discovered.
Landlord Michael Delaney told the court that he was first alerted to a smell in the house by another tenant on August 19.
A week later, another tenant called him to say that there was a strong smell in the house and raised concerns that Mr White had not been seen or heard for a fortnight.
Mr Delaney used his master key to enter the man's flat, where he saw a body in a blackened state lying in the doorway from the inner hallway into the living area.
The deceased, an unemployed IT consultant, was a quiet person who kept to himself, said Mr Delaney.
Garda Mark Deasy told the court that the deceased was identified using a DNA sample from his Jersey-based mother Ethel Hanks.
The flat was secure and there was no evidence of foul play. It appeared as if Mr White had collapsed, he said.
Mr White had attended the Mater Hospital in the weeks before his death complaining of a chest pain but this was considered to be muscle strain.
Coroner Dr Brian Farrell said that the pathologist had been unable to find an obvious cause of death due to the decomposed state of the body.
Dr Farrell returned an open verdict.