The stepfather of missing Dublin teenager Amy Fitzpatrick has appeared in court charged with her brother's murder.

David Mahon, 43, with an address at Ongar Village, Clonsilla, was arrested and charged with the murder of 23-year-old Dean Fitzpatrick in May 2013 at Northern Cross on Dublin's Malahide Road.

Dublin District Court heard Mr Mahon met gardaí by appointment at Coolock Garda Station this morning, and after caution made no reply to the charge.

Prosecuting gardaí agreed with his solicitor Michael Staines that he had met by appointment for all interviews and had kept in contact with gardaí throughout the investigation and had returned to Ireland when requested to do so.

The court was told Mr Mahon was on disability benefit and would be applying for legal aid.

He was remanded in custody until 2 April but may apply to the High Court for bail.

Mr Fitzpatrick died after he was stabbed at a Dublin apartment on 26 May, 2013.

His sister Amy went missing in Spain in 2008 when she was 15.

Mr Mahon is the partner of Amy and Dean's mother Audrey, who was also in court this morning.