NEWRY and Armagh MP Conor Murphy has called on anyone with information on the murder of Garda Adrian Donohoe to bring it to An Garda Siochana or the PSNI.
The 41-year-old was originally from Kilnaleck in Co Cavan, but was stationed at Dundalk Garda Station.
Specialists from the Garda Forensic and Technical Bureau examined the scene at the Lordship Credit Union.
The credit union stays open late on Friday nights and Detective Garda Donohoe and Detective Garda Joe Ryan were on escort duty.
It is believed four armed men were waiting in the car park outside to rob the credit union. They moved to hold up staff at gunpoint as they were leaving to deposit money in Dundalk.
The two gardaí got out of their car, but as Det Garda Donohoe approached, he was shot in the head without warning. He had not drawn his garda-issue weapon.
Det Garda Ryan has been traumatised, but is otherwise unhurt.
The raiders then fled the scene in what is believed to have been a dark-coloured car.
A similar vehicle was later found burned out at Fews Forest, near Keady.