A former Sinn Féin councillor has been charged with the murder of David Byrne at the Regency Hotel in Dublin five years ago.
Jonathan Dowdall, 43, from the Navan Road in Dublin was charged before the Special Criminal Court this morning after a warrant had been issued last Friday.
Three other people have been charged in the last week in connection with the murder that escalated the ongoing Hutch-Kinahan feud.
Jonathan Dowdall was remanded in custody to appear again before the court in June.
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Byrne, a 34-year-old Kinahan Organised Crime Group member, was shot dead at a boxing weigh in at the Regency Hotel on 5 February 2016.
The murder escalated the ongoing feud between the Kinahans and the Hutch Organised Crime Group, which has so far led to 18 murders.
Detective Garda Paul Darley from Ballymun Garda Station gave evidence of arrest, charge and caution at this morning's hearing.
He told the court that he met Jonathan Dowdall in the precincts of the court in a holding cell this morning and handed him a copy of the charge.
He also identified him to the three judges as he sat in the dock.
The former councillor spoke once during the brief hearing replying "yeah" to the registrar when asked if he was Jonathan Dowdall before the charge under common law of murdering David Byrne at the Regency Hotel on 5 February 2016 was put to him.
State Solicitor Ciara Vibben told the court that the Director of Public Prosecutions had certified that the ordinary courts were inadequate in this case to secure the administration of justice, and Jonathan Dowdall was to be tried at the Special Criminal Court.
His barrister David Perry told the court that Jonathan Dowdall was currently a serving prisoner in Wheatfield Prison and hoped he could remain there.
Mr Justice Tony Hunt said that was a matter for the prison authorities and remanded Jonathan Dowdall in custody to appear again at the Special Criminal Court on 14 June, the same day as three other men who have been charged in connection with the murder.
Patrick Dowdall, Jonathan Dowdall's father, Paul Murphy and Jason Bonney have all been charged with knowledge of a criminal organisation and participating or contributing to activities connected to the murder of David Byrne.
Patrick Dowdall and Paul Murphy have been remanded in custody while Jason Bonney has been granted bail.