Gardai have arrested a man in his early 30s in connection with the murder of Bobby Messett at Bray Boxing Club in June.
The innocent bystander in his 50s was gunned down when a gunman opened fire as the gym was opening on the morning of the 5th of June.
It's believed boxing coach Pete Taylor, who owned the club, was the intended target.
The suspect who was arrested last night can be held for questioning for up to seven days.