A teenager was yesterday charged with the murder of 12-year-old Michaela Davis.
Jonathan Byrne (18), from Lohunda Downs, Clonsilla, west Dublin, is accused of killing the schoolgirl over the weekend.
Michaela's body was found on a bank of the Royal Canal at Porterstown, near Blanchardstown, on Saturday afternoon.
She had been raped, beaten and strangled.
Yesterday, Mr Byrne made no comment during his brief appearance in Dublin district court.
Det Sgt Daniel Callaghan from Blanchardstown Garda station gave details to the court of the arrest, charge and caution.
He said Mr Byrne had been arrested at 11.30pm on Sunday and was subsequently charged by Sgt Joe Delaney with the murder of Michaela at Porterstown Road.
Mr Byrne made no comment when he was charged, Det Sgt Callaghan told the court.
Defence solicitor Eugene Dunne applied for legal aid and medical attention for his client, which were both granted by judge Patrick Clyne.
Mr Byrne wore a grey hoodie, white runners and blue jeans during the brief hearing, which lasted only a matter of minutes.
Judge Clyne remanded him in custody to appear again before Cloverhill court on Friday. No application for bail was made.
When he was being escorted out of court by prison officers, he briefly waved to someone in the courtroom. Nobody returned his acknowledgement.
Throughout the hearing, Mr Byrne showed no emotion.
The partially covered body of Michaela was found by an elderly man out walking along the canal bank on Saturday afternoon.