A man has been arrested in connection with the murder of a 20-year-old man in Dublin last year.
Dean Johnson was shot as he sat in a car on Moorfield Avenue in Clondalkin on 25 May 2011.
He was taken to Tallaght Hospital where he was later pronounced dead.
A 23-year-old man was arrested yesterday evening in Co Wexford and is being held at Lucan Garda Station.
A number of other people have also been questioned in relation to the murder.
