Four men have been arrested in connection with the murder of Neill Reilly in Dublin earlier this month.
Mr Reilly (36) died after being beaten and stabbed by a number of assailants and then run over by a vehicle in a residential area of Lucan on January 18th.
The violent incident occured following a shooting incident in Ronanstown, in which a number of shots were fired at a house.
The four men - aged from their late teens to 50s - were arrested in Dublin on Monday morning and are being held at various Garda stations.