A man (34) has been arrested in connection with the shooting dead of "Fat" Andy Connors in 2014.
Connors, regarded by gardaí as a prolific criminal, was shot multiple times to his upper body in his home at Botherboy, Saggart in Co Dublin, on August 19th, 2014 at about 11pm.
The 45-year-old was brought to Tallaght Hospital but died shortly before midnight.
Gardaí arrested the 34-year-old man in west Dublin on Tuesday.
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He is in custody at Tallaght Garda Station and investigations are ongoing.
Anyone with information about the incident is asked to contact Clondalkin Garda Station on 01 666 7600.