Updated / Tuesday, 2 Jun 2026 12:42 Thomas Griffin was taken to St James's Hospital, where he later died The man who died after an incident in Dublin on Saturday night has been named as 31-year-old Thomas Griffin from Ballyfermot. Mr Griffin swam across the River Liffey after he was reportedly assaulted at the War Memorial Gardens in Islandbridge, which occurred at around 10.20pm on Saturday night.