He was arrested on Tuesday eveningafter the investigation into Miriam Burns’ death was declared a murder inquiry.
A man in his 50s who was arrested in connection with the murder of Miriam Burns in Kerry has been released without charge.
Local gardai believe the grandmother was fatally attacked in her home near Killarney some time between last Friday and this Monday.
The man in his 50s who was arrested in connection with this killing has been released without charge pending further investigation.
He was arrested on Tuesday evening, shortly after the investigation into Miriam Burns’ death was declared a murder inquiry.
Gardai are understood to have searched an area around an old holy well near Killarney in connection with the investigation.
Ms. Burns, who was 75, has been remembered as a ‘smiling’ and ‘stylish’ lady who often cycled to and from her engagements around the town.
She’s described as a 'devoted' family woman in her death notice, who is ‘devastatingly missed’.
The grandmother will be laid to rest at St Mary’s Cathedral on Sunday afternoon at 2.15pm

€1.2m Approved For Zipline And High Ropes Adventure Centre At Donadea
Christmas Appeal To Adopt Dogs As Euthanasia Figures Rise
Speed Enforcement To Increase In Kildare With 21 New Camera Zones To Be Rolled Out In January
Over 400 Motorists Caught Speeding So Far Today, Including A Driver In Kilcock
Transport Minister In Discussions With Irish Rail About Extending Late-Night Trains Beyond Christmas
Tadhg And Mary Should Be Looking Forward To Christmas, Say Gardai As Fresh Appeal Launched
Bus Shelters Treated As Luxury Rather Than Standard, With 500 Kildare Bus Stops In Need Of Upgrades
Recruitment Announcements Don’t Add Up As Garda Numbers Stagnant In Kildare South, Says Local TD