It's believed Marcin Nowosielski's body lay undiscovered in a ditch for a number of days.
Gardaí are trying to trace the movements of a man killed in a Westmeath crash, believed to have taken place on Sunday.
Marcin Nowosielski's body and his car were only discovered in a ditch on the Castlepollard to Coole road yesterday evening.
Meanwhile a man in his 80s died on the Castlepollard to Mullingar road at Gartlandstown after a two vehicle collision earlier this morning.
A woman, in her 60s, is still being treated for life threatening injuries at Midlands Regional Hospital in Tullamore.
Superintendent Liam Geraghty says Gardaí are seeking the public's assistance as they try to piece together Mr Nowosielski's last hours:
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