Alan Wilson, aged 33, of New Street Gardens, Dublin, is accused of the murder of the Ms Rostas, aged 18, at 2 Brabazon St in the south inner city on Jan 8, 2008.
At Cloverhill District Court yesterday, Judge John Lindsay agreed to a request from Donough Molloy, defending, for a two-week remand with consent from the prosecution.
At his second court appearance, Mr Wilson, who wore a navy shirt and navy trousers, was remanded in custody to appear again at the same court on Apr 26.
A postmortem revealed that Ms Rostas — who arrived in Dublin just three weeks before her disappearance — had been shot in the head.
The body of the 18-year-old was found following an 13-day search in Jan 2008 in the Wicklow Mountains.
Her semi-decomposed remains were discovered in a shallow grave at Kippure near Manor Kilbride.
She was last seen alive by her 15-year-old brother on Jan 6, 2008, as she was getting into a car, while they were out begging on Lombard St in Dublin’s south inner city.
Mr Wilson was arrested in Dublin last week and taken to Pearse St Garda Station for questioning.
He was brought before a special sitting of Dublin District Court later that night to be charged in connection with Ms Rostas’s death.
On that occasion Detective Inspector Michael Cryan had told the court that Mr Wilson replied: “I didn’t do this” when he was cautioned at Pearse Street Garda Station.
Marioara Rostas was one of 15 children born in Timisoara in Romania. Her parents, Marioara snr and Dimitru, a horse dealer, came to Ireland in 2007 and were later joined by their daughter.
Marioara and family members began living in an abandoned bungalow on the outskirts of Donabate, in north county Dublin.
Their home had broken windows, there was rubble blocking the driveway, but it had no running water or electricity.