The man who gardaí believe killed missing Wexford woman Fiona Sinnott (19) was released from custody without charge last night.
However, detectives believe they have made sufficient progress to bring a charge against him soon.
The man, who is in his 30s and is from Wexford, was arrested just before 7am yesterday. His arrest followed the detention of five other people since Wednesday, all of whom are the suspect's family members or people close to him. All have now been released without charge.
Garda sources last night said a number of statements had been made by the group over the last three days, and that these would be reviewed before the case proceeded to the next stage.
A woman known to the suspect gave vital information to gardaí around six weeks ago which was not given at the time of the initial investigation in February 1998 when Ms Sinnott first went missing.
Ms Sinnott was originally from Bridgetown, Co Wexford. She was last seen at Butler's bar in Broadway near Rosslare at closing time on Sunday, February 8th, 1998.
She left the pub with her former partner, Seán Carroll. He was the father of Ms Sinnott's daughter Emma, who was 11 months old when her mother went missing.
Mr Carroll told gardaí at the time that he had spent the night in Ms Sinnott's cottage in Ballycushlane, Co Wexford. He said when he left the next morning she was still at the house. She has not been seen since.