It's believed the deceased, who'd been working as a taxi driver, may have suffered a number of stab wounds.
He was found on the road at Kilcurry in Dundalk at around 3 am.
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The area has been sealed off for a full technical examination and a post mortem examination will be carried out.
Conor Feehan is a journalist with the Herald and Irish Independent.
He says the family are trying to come to terms with what has happened.
Meanwhile, Local Fianna Fail councillor Conor Keelan is condemning the killing.