The 30-year-old had been watching a film with his partner when he suddenly took ill.
Seán Brosnan and his partner Eileen Manning had settled in for the evening to watch his favourite film ‘The Shawshank Redemption’ when he took ill at her father’s house at Kilvicadownig, Ventry on December 27th last year.
Mr Brosnan went to the bathroom after 11pm and was checked on 10 minutes later by Patrick Manning who had heard a clatter and thought Seán might be getting sick.
In his evidence to the inquest, he said he found Seán lying on the floor and his face was purplish.
Mr Manning and his daughter Angela performed CPR. His other daughter Eileen remained by her partner’s side.
The ambulance arrived after midnight and Mr Brosnan was pronounced dead at 12.45am on December 28th.
A post-mortem examination found he had died from Sudden Arrhythmic Death Syndrome following the ingestion of alcohol in the toxic range.
Pathologist Dr Margot Bolster said Mr Brosnan had been more vulnerable because he wasn’t normally a heavy drinker.