Gardaí say two taxi drivers working on the morning that Dermot Byrne was found beaten to death in Swords may have information that can help the murder inquiry.
One of the taxis dropped two men and two women on North Street in the early hours of Sunday July 16th - near where the father of three was found fatally injured.
Detectives want to speak to a second taxi driver who picked up a man on nearby Main Street just before three a.m that morning.
In a statement to 98FM News, Gardai say "one taxi picked up a fare at Swords Manor at approximately 00:50hrs. The fare included two males and two females, they were dropped on North Street Swords a short time later. One of the male passengers was carrying a large dark coloured sports bag.
The second taxi picked up a male passenger on Main Street Swords approximately two hours later at 2.55am. This man was in possession of a large coloured sports bag."
Officers are also hoping to hear from three men seen walking from North Street towards Main Street at around the same time.
Anyone with information can contact the Incident Room at Swords on 666 4700, the Garda Confidential Line on 1800 666 111 or any Garda Station.