A phone call was made to gardai that a man had been tied up in a house the day before a Sligo pensioner was discovered left for dead in another property.
Gardai have confirmed a call was received by emergency services relating to a man in a house with a brown gate.
The next night Eugene Gillespie was discovered with his hands tied behind his back in another property in the town.
The 68-year-old, who was violently beaten in an apparent burglary, died in hospital on Saturday.
A Garda spokesman said gardai had acted on the call, with members going to the house as described.
"They satisfied themselves that there was nothing untoward," he said.
"This phone call is forming part of the Garda investigation into the death of Eugene Gillespie and gardai are liaising with phone companies in efforts to identify the caller."
Mr Gillespie may have lain injured for two days before he was found in his home on Old Market Street - less than 100m from the town's Garda station.
The former shopkeeper was popular in his home town, and was a vintage car enthusiast who took a lead role in organising rallies in the area.
Detectives probing his murder are trying to trace his final movements before he was attacked.