A 32-year-old man has appeared at Tallaght District Court charged with the murder of Patricia O'Connor.
Ms O'Connor, who was 61, and from Rathfarnham in Co Dublin, was reported missing on 2 June.
Her remains were found in several locations over the past week.
Detective Garda Conlon told the court that Kieran Green, 32, with an address in Mountain View Park in Rathfarnham, was arrested this morning at Bray Garda Station.
He was charged with the murder of Ms O'Connor at 11.28am, at which point he said "it was self defence".
Justice Patricia McNamara said due to the seriousness of the charge there was no question of bail.
She remanded Mr Green in custody to appear by videolink at Clover Hill District Court at 10am next Thursday.
She asked about legal aid and the accused's solicitor Patrick McNiece said his client is on social welfare and has an adult and four children as dependents.
He said his only request for his client was that he would receive a medical assessment in custody and be given any medical assistance required.