Police have charged a 25-year-old man in connection with the death of a man murdered in Belfast last March.
Mr Jones was discovered in north Belfast, near Elmfield Street
The man will appear at Dublin District Court on Tuesday on charges connected with the death of Edward Burns. Mr Burns was found near the Falls Road.
Six other men and a woman are being questioned about his killing and that of Joe Jones, whose beaten body was discovered in Ardoyne.
One woman being questioned in the Irish Republic has since been released.
Gardai are still questioning three other men.
The PSNI are holding four men and a woman over the killings.
Police said the killings took place against the backdrop of tension within dissident republicanism.