A murderer told police he couldn't remember killing an Aberdeen man at a party as his head was "f***ed" from taking alcohol and drugs. Sean O'Halloran, 20, made the admission to detectives after being arrested for killing Scott Hector at a house on Marischal Court on April 2, 2021.
The High Court in Edinburgh heard how O'Halloran and Conor Adams, 18, went to the property with friend Carly Cairns. The trio were attending a get-together thrown by the householder, Rhiann Parks. The duo had gone there in an attempt to obtain drugs from Mr Hector, the court was told.
But upon arriving at the address, O'Halloran stabbed Mr Hector on the body once and stole narcotics belonging to the dead man. Judge Lord Armstrong heard how detectives interviewed O'Halloran later on April 2, 2021 and he told them he couldn't remember.
Prosecutor David Dickson said: "At 9.43pm on April 2, 2021, O'Halloran was interviewed. He confirmed he had gone to Cairns' home address where he had consumed alcohol but could not remember what happened that day as his head was 'f***ed.'
"He was further interviewed the following morning, where he said he did not want to get anyone into trouble, [but said he] had gone to Cairns' house, [where] he ingested cocaine, valium and cider and then attended with Cairns and the accused Adams at a party in Aberdeen."
O'Halloran, of Bradley Terrace, Aberdeen, pleaded guilty to a charge of murdering Mr Hector by stabbing him on the body with a knife. Adams, of Gordon Mills Crescent, Aberdeen, pleaded guilty to a charge of being responsible for the culpable homicide of Mr Hector. The pair also admitted conspiring to rob Mr Hector.
Mr Dickson told the court that on April 1, 2021, Adams and O'Halloran agreed to go to Ms Cairns' home in Kemnay. The court heard that whilst at Cairns' house, the two accused consumed alcohol and at one point took 20 valium tablets between them in less than one hour.
Mr Dickson told the court that Mr Hector was at Rhiann Parks' home. He contacted Cairns on Snapchat after she had posted on the social media network that she was looking for drugs. Mr Hector then made a call and invited Ms Cairns to go the party.
Cairns later told investigators that Mr Hector told her that he had "cocaine, ecstasy and cannabis". Mr Dickson said that O'Halloran - who had heard Mr Hector's claims - then interrupted the call and said to him: "Don't worry lad we will be through."
Mr Dickson added: "At the end of the call, Cairns' evidence is O'Halloran said 'if it's a boy and a girl, it will be easy to just go in and take the drugs from them and leave again'. At around 4am, Charles McKay, who has autism, was working at a bakery in Inverurie when he received a Snapchat from O'Halloran asking for a lift from Kemnay to Aberdeen. Charles McKay agreed.
"He drove to Aberdeen with O'Halloran in the front passenger seat. Adams and Cairns were in the rear. During the journey, McKay saw both accused with knives. O'Halloran was vocal and indicated that 'if anyone is going to try anything with me, at least I've got this.' in reference to the knife which was visible in his hands."
The court heard that Adams, Cairns and O'Halloran arrived at the address at 6am. Mr Dickson said that people at the gettogether had been taking lines of cocaine and ecstasy, which had been placed a set of scales. Describing the moments after the stabbing, Mr Dickson said: "The deceased was heard to say 'whoa, whoa, whoa'.
"Cairns describes how the deceased burst into the kitchen where he fell onto the floor. He was holding his side where it was seen he had been stabbed. He was heard to say 'he's just stabbed me'
"Thereafter, O'Halloran picked up the set of scales and said they were to leave. Adams, O'Halloran and Cairns ran outside and into the car where McKay was waiting. O'Halloran was seen to have blood on his right hand. During the journey, Adams challenged O'Halloran about what happened and said that he, O'Halloran, had gone too far.
"O'Halloran was heard to say it was 'Scott's fault' and he should not have grabbed the knife from him. The accused Adams kept asking O'Halloran 'why did you do that lad?', 'you didn't have to do that', 'You've gone too far.'
"O'Halloran said he had told the deceased 'I'm taking that lad' referring to the scales upon which the cocaine and ecstasy had been placed. O'Halloran produced the set of scales in the car saying 'look what I've got'. He was heard to say 'I told him he should have just gave me it.'"
The court heard that O'Halloran's DNA was found on the knife used to stab Mr Hector. A jacket worn by O'Halloran on the night of the murder was also recovered. Officers also found DNA from him and from Mr Hector.
On Tuesday, Adams' advocate Mark Stewart KC said his client had no previous convictions and that the court would need reports before he could be sentenced. O'Halloran's advocate Ronnie Renucci KC said he'd also reserve his mitigation until reports were obtained.
Lord Armstrong deferred sentence on the pair in order for the court to obtain reports on their background. He told the pair, who were remanded in custody earlier this year: "You will continue to be detained until then."
Detective Chief Inspector Graham Smith, of Police Scotland’s Major Investigation Team, said: “Our thoughts are with Scott’s family and friends as they continue to come to terms with his tragic and needless loss.
"The family of Scott wish to thanks those who have supported them through this incredibly difficult time and have requested privacy." The pair will be sentenced at the High Court in Edinburgh on December 15.
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