The dad and his two sons who were found shot dead this afternoon are pictured for the first time tonight.
Tadgh O'Sullivan is seen smiling with son Mark on his graduation from University last year, while Diarmuid O’Sullivan is seen smartly dressed, grinning outside a front door.
The trio were all found with gunshot wounds today in a tragedy which has shocked the community of rural north Cork and the nation of Ireland, CorkBeo reports.
Their bodies were found on land and a farmhouse in Assolas, Kanturk, in Cork.
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Cork Beo reports Mark was 26, while Tadgh was in his fifties and Diarmuid was 22.
It is alleged that their deaths are linked to a disagreement over family inheritance, Cork Beo reports.
It is believed that a major dispute blew up in the family recently over a will relating to a large parcel of land.
Local sources have told CorkBeo that the family were already under severe strain due to a serious illness affecting one family member.
It is understood that Gardai were aware of legally-held firearms in the house, which is relatively isolated and surrounded by land which is popular with local gun-clubs.
Local councillor John Paul O'Shea said: "Everyone is deeply saddened and shocked by this tragedy.
"My thoughts go out to the family and to the wider community of Castlemagner and Kanturk as they come to terms with this unimaginable loss.
"There is a strong and determined community spirit in Castlemagner and the community there I know will rally around their families, neighbours and friends over the coming days as they deal with this tragic loss."
The body of the younger brother was found in a bedroom of the farmhouse while his dad and older brother were found up to half a kilometre away in a field.
Gardai (Irish Police) have been in attendance at the property in Assolas, Kanturk, since 6.30am.
It was reported that a woman in her 60s raised the alarm this morning, turning up at a neighbour's home, appearing distraught and saying there had been a shooting at her family home.
She did not have a phone and ran to the nearest neighbour.
It's understood that the younger son had only very recently returned to the family home.
Negotiators attempted to make contact with anyone in the house. However after 1pm, the body of the son was found and then Mark and Tadgh were located in the adjoining lands after an air search.
Two rifles and a shotgun were found at the scene and are being examined by investigators.
A Garda (Irish Police) spokesperson said: "Both locations have been declared as crime scenes and An Garda Síochána has commenced a full investigation into all the circumstances of the incident under the direction of a Senior Investigating Officer.
"The State pathologist and the Garda Technical Bureau have been contacted and are on the way to both scenes.
"A family liaison officer has been appointed and an incident room has been established in Kanturk.
"An Garda Síochána is not looking for any other persons in connection with this incident at this time.
"An Garda Síochána is appealing to any person who may have any information which may assist in the investigation of the incidents which occurred this morning to contact investigating Garda at Mallow Garda Station 022 31450, the Garda Confidential Line 1800 666 111 or any Garda station."
The woman in her 60s raised the alarm shortly before 6.30am today, with Gardai being told that three males were in the house, and that one may have suffered from gunshot wounds.
Gardai had to approach the isolated farmhouse down a long track.
Trained negotiators spent several hours trying to contact people inside the house but were unsuccessful.
Upon arrival, police were told that more gunshots had been heard locally.
Local police and other emergency services called for backup after arriving at the farmhouse, with the Armed Response Unit from Cork city being among the first on the scene.
The Emergency Response Unit from Dublin then arrived in an Air Corps helicopter, while hostage negotiators were brought in in case they were needed.
Officers initiated their critical firearms incident response, and negotiators attempted to make contact with anyone in the property during the morning.
It wasn't until after 1pm that police decided it was safe to enter the property after an assessment was made, where they made the horror find before an aerial search revealed the other two bodies in adjoining lands at around 1.40pm.
A full investigation has been launched, and the state pathologist and the Garda Technical Bureau are to visit both scenes.
Cordons are in place around the isolated farmhouse, reportedly on the outskirts of Kanturk in north Cork, and on surrounding roads.
Police provided a media briefing outside Kanturk Garda Station at 5.00pm today.
Three legally held firearms have been taken away for examination by forensic experts.
Garda Superintendent Adrian Gamble confirmed all three were from one family, and all had suffered gunshot wounds.
He described the incident as a "terrible tragedy".
The State Pathologist is at the scene and a full post-mortem investigation has been launched.
