The car involved was found burnt out at the location.
A murder investigation has begun at Carlow Garda Station following a fatal traffic incident in April.
Motorcyclist Tom Connors, from Bunclody Co Wexford, was pronounced dead at the scene.
The car involved was found burnt out at the location, and the occupants of the car failed to remain at the scene.
Upon investigations, including technical examinations and a post-mortem , Gardaí have launched a murder investigation.
They're appealing for help in tracing the movements of a dark grey Volkswagen Passat CC.
It has Northern Irish registration plates and partial registration O-H-Z.
The car travelled across the M1 toll bridge at approximately 8pm on the 23rd April 2024.
Following this, the car travelled to the Ballon area of Carlow on the evening of Wednesday 24th April 2024.
Any road users who may have camera footage, including dash-cam, are asked to make them available to Gardaí.
Gardaí are also looking to trace the movements of a black Honda CBR motorbike, with partial registration 03 WW, in the Sandbrook area on the evening of Wednesday 24th.
Anyone with information regarding this incident is urged to contact any Garda station.
