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Morning Ireland: Joe Costello, Labour TD, says the death of Aidan O'Kane highlights the problem of anti-social behaviour in Dublin's north inner city
He was remanded in custody for a week.
The father of one was shot once in the body at around 7.15pm on Sunday and died 30 minutes later in hospital.
Another teenage boy who was being held at Store Street Garda Station has been released without charge as has a woman who was being held at Mountjoy Garda Station.
Three men and one woman remain in custody at Store Street, Bridewell, Pearse Street and Whitehall garda stations.
