He will appear before Castlebar District Court this morning at 10.30am, in connection to the lethal assault which took place on Monday.
It's understood the victim (24), from Carramore Drive, Knock Co Mayo, suffered knife injuries in an attack which happened shortly before 11 pm at the Carrabeg Estate.
Yesterday morning the victim's remains were removed from the scene to Mayo University Hospital in Castlebar where the Deputy State Pathologist, Dr Kathleen Han Suyin, carried out a post mortem.
Tributes from shocked family and friends have started flooding in across Facebook.
One close friend posted a recent picture of Michael with the words: “R.I.P buddy absolute in shock tbh wen I got the call but heaven is Yr bed now sleep tight with the angels cuz Yr an angel now bro.”
While another devastated friend simply wrote: “So sad an so young rip,” accompanied by a broken heart emoji.
One of Michael’s cousins posted a picture of them together and said: “Rip my cuz omg still cant believe your gone rip.”
Gardaí investigating the incident have carried out door to door inquiries and have appealed for help from the public.
"House to house enquiries are being conducted, and gardaí are gathering and viewing CCTV footage from the locality.
"A senior investigating officer has been appointed, and a family liaison officer has also been appointed.
"A man in his thirties continues to be detained at Castlebar Garda Station, and the scene continues to be preserved for a technical examination.
"Investigating gardaí are trying to determine the movements of persons prior to this fatal incident.
"Gardai are seeking the assistance of any road users who may have been in the vicinity of the main street in Swinford between 8 pm-11 pm on Monday, November 16 and who may have video footage or anyone with mobile phone video to contact the investigation team.
"An incident room has been set up, and anyone with information, including video footage, can contact Claremorris Garda Station on 094-9372080.
"The investigation is ongoing."