Donohoe may have been killed for recognising gunman

Det Gda Adrian Donohoe may have recognised his killer and that was why the gunman opened fire, gardaí suspect.

Detectives are also investigating the possibility the raiders did not expect there to be an armed Garda escort for the cash delivery at Lordship Credit Union, north Louth, last Friday.

Garda sources said the same gang was thought to have robbed the cash delivery at the same location in 2011, when there was only a uniformed and unarmed Garda escort. At that time they got away with €62,000.