A man has been arrested in connection with the gun murder of a 21-year-old last month.
Dean Johnson was ambushed on the Neilstown Road, Clondalkin, west Dublin, on August 24th .
Gardai arrested a 27-year-old today in the south inner city.
He was taken to Ronanstown Garda station under the provisions of Section 30 Offences Against the State Act 1939.
PA
