Two men who filmed their rape of a drugged and defenceless young father are facing life sentences for his murder.
Dylan Brister, 27, and Cameron Allan, 20, spiked Calum Simpson’s drink leaving him unconscious, before subjecting him to a serious sexual assault that was recorded on a mobile phone.
The father-of-three’s wrists were bound with rope during the attack.
Mr Simpson, 24, later died from intoxication caused by Class C drug Etizolam and alcohol.
His youngest child had only been born 11 days earlier.
On Friday, both Brister and Allan were found guilty of sexual assault, rape and murder following a trial at the High Court in Edinburgh.
The pair, from Fife, were remanded in custody and will be sentenced at a later date.
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The attack occurred at Brister’s home in Methil in November 2021.
Trial judge Lord Harrower told the court: “The evidence has been of the most harrowing nature that this court has ever had the misfortune to listen to.”
The jurors were excused from further jury service for the rest of their lives.
Advocate depute Angela Gray earlier told the court: “What you saw on that footage was rape. It was sexual assault. It was committed by both accused acting together.”
She added: “They drugged him for their sexual gratification. That drugging was wickedly reckless to the consequences and in so doing they had a complete disregard for the safety and the life of Calum Simpson.”
The prosecutor said the film was “a glimpse into the depravity” and the dynamic between Brister and Allan.
During the footage, Allan could be heard saying to his accomplice: “At least he is still breathing.”
The court heard that the pair had been seeking to recruit a man to make up a threesome with them but efforts to find a participant failed.
One man who met Allan at an inaugural Pride event in Dundee was told they would be “up for” choking him and wanted to tie him up and abuse him but he chose not to become involved.
Ms Gray said: “And then Calum Simpson, a complete stranger, arrives by chance.”
Mr Simpson arrived at the house with a friend who knew the pair and later departed leaving him alone with them.
Ms Gray noted: “There was no evidence that Calum Simpson had any homosexual tendencies.”
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During the trial, both Brister and Allan attempted to blame each other for spiking Mr Simpson’s drink with Etizolam.
Brister, who received almost £1,200 a month in benefits, had won more than £20,000 gambling and bought 1,000 tablets for £200.
He claimed he thought the tablets were diazepam.
During an interview with police, Brister told officers: “We are not rapists. We are young boys that like a bit of fun.”
The court heard that Brister had previously spiked the drink of one woman and placed tablets in the mouth of another without her consent.
Brister told the court he suffered from complex post-traumatic stress disorder and a personality disorder and received anti-psychotic medication.
He said: “I won’t dispute the fact that Calum passed out and we carried on. I didn’t spike that boy, but yes, I gave him drugs.
“We raped him and continued to have sex. It is what it is, disgusting. It should never have happened. I am not going to make excuses.”
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Allan, who also received £1,200 a month in benefits, said he was diagnosed with an attachment disorder after watching his mother die in a car accident when he was three.
He stated he was now disgusted that he took videos.
Allan claimed that Mr Simpson was conscious and consenting when he was tied up by the pair.
He was asked why he continued after the victim passed out and replied he did not know he was doing something wrong at the time.
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Following the killers’ conviction, Detective Inspector Scott Roxburgh said: “Our thoughts are very much with Calum’s family and friends and I hope that the conviction brings them some kind of closure.
“This was a particularly horrific and sickening attack on a young man who died after being drugged and sexually attacked. Both men will now face the consequences of their actions.”
