Three teenagers including a 14-year-old who were charged after Cork Institute of Technology (CIT) student Cameron Blair (20) died at a house party have been remanded to the Central Criminal Court.
A 17-year-old charged with the murder of the young rugby player was remanded for trial to the same court.
He appeared before Cork Children's Court, where the book of evidence in relation to the murder charge against him was served by gardai.
The teen, who has been remanded in custody, did not speak during the hearing.
Mr Blair was found by emergency services with a stab wound to his neck at about 9pm on January 16 after a house party on Cork's Bandon Road.
A student house party had been taking place at the property at the time.
Despite efforts by paramedics and Cork University Hospital (CUH) surgeons to stabilise his condition, Mr Blair was pronounced dead shortly after being taken to A&E.
Judge Mary Dorgan granted free legal aid to the 17-year-old as she remanded him to the current sessions of the Central Criminal Court in Dublin.
A 14-year-old boy also appeared before Judge Dorgan charged with violent disorder and production of an article capable of inflicting serious harm at Bandon Road, Cork, on January 16.
Detective Sergeant Martin Canny said the 14-year-old made no reply when the charges were formally put to him.
Judge Dorgan was told the DPP has ruled that the charges be dealt with on indictment before the Central Criminal Court.
Inspector Brian O'Donovan said gardai had no objection to the 14-year-old being granted bail.
Judge Dorgan ratified bail conditions, including that the boy reside at a specified Cork address, observe a 10-hour nightly curfew and sign on at a garda station every day.
Free legal aid was granted in light of the serious nature of the charges and the age of the defendant, who is a second-year secondary school student.
Judge Dorgan refused to deal with charges of violent disorder and production of an article capable of inflicting serious harm against an 18-year-old.
She said that, given his age, he did not qualify to appear before the Children's Court.
The 18-year-old was referred to Cork District Court, where Judge Olann Kelleher remanded him to appear before the Central Criminal Court.
In response, the defendant said: "I wasn't involved in any argument against anyone."
The youth, who cannot be identified for legal reasons, was remanded on bail.
Mr Blair (20) was a chemical engineering student who had starred with Bandon Rugby Club and had won national athletic honours.