A second person has been arrested by Gardaí investigating the murder of Tristan Sherry.
The 26-year-old was killed in an attack in a restaurant in Blanchardstown in Dublin on Christmas Eve.
Officers are questioning the man, arrested today, at a Garda Station in west Dublin, where he can be held for up to 24 hours.
It's the second arrest in the murder investigation, with another man who was detained last week appearing in court last Saturday.
