Gardaí say they arrested a man yesterday evening as part of the investigation into the murder of Tristan Sherry that occurred at a premises on the Main Street in Blanchardstown, at approximately 8pm on Christmas Eve.
He is currently detained under Section 4 of the Criminal Justice Act, 1984, at a Garda Station in West Dublin.
This man is the third arrest made as part of this investigation.
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The second man arrested is still being detained under Section 4 of the Criminal Justice Act, 1984, at a Garda station in West Dublin.
Gardai say investigations are ongoing.