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