It's understood the discoveries of the bodies of two men in Co Monaghan yesterday are linked.
60 year old Christopher Mooney died after being stabbed in his home in Broomfield.
Shortly after, 37 year Kieran Hamill from Armagh is believed to have fled the scene before being hit by a car on the Castleblayney to Dundalk Road.
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Crime Editor with the Irish Sun, Stephen Breen, says Gardaí are still trying to piece together what happened: