Banbury-raised 17-year-old Connor Tremble died after sustaining 15 separate stab wounds, an Oxford Crown Court jury has heard.
Richard Barton gave the graphic evidence of the teenager’s horrific injuries whilst prosecuting Will Blencowe, 21, who is charged with the murder of the former schoolboy from Banbury, in Oxford on February 13.
Mr Barton told the jury Connor sustained wounds to his arms, chest, left arm pit, left hip, stomach area and buttocks and four wounds in the back after the alleged stabbing at Connor’s flat in Fairacres Road.
But giving evidence,Dr Michael Orr, a consultant psychologist who prepared a psychiatric report into Blencowe’s mental state at the time of the alleged murder, recounted an interview with Blencowe in which he said his memory of the incident was ‘hazy’ and he could only remember his arm moving through the air twice.
Dr Orr said: “He can’t recall more than two wounds to the arm or chooses not to recall more than two wounds to the arms.”
Blencoe is alleged to have travelled to Oxford from Banbury and stabbed Connor after he found out he was seeing his former girlfriend Aimee Harrison.
Dr Orr suggested Blencowe was prone to ‘impulsive aggression’ and indicated his mental state at the time of the attack may have led to diminished responsibility for his actions.
But Mr Barton strongly disputed this saying: “This would seem to be a case of him seeking out a love rival and being aggressive towards him.
“If he took the knife with him that’s not diminished responsibility is it?” The court heard when interviewed by Dr Orr, Blencowe told him he was going to Connor Tremble’s flat to ‘make peace’ with him and tell him he had no problem with him.
But Dr Orr said Blencowe claimed that when he arrived at Connor’s house he saw the teenager through the window and saw he had a knife.
Blencowe told Dr Orr when he attacked Connor he couldn’t control himself as he was ‘like a robot’.
Dr Orr said: “I feel that his impulsive aggression at the time would imply a great deal of caution would need to be exercised in how he proceeds in the future in that he could be a risk to others.”
The doctor said Blencowe told him he had already agreed to buy heroin from someone in Oxford before he set out on his journey during which Blencowe claimed he ‘planned to kill himself’.
Mr Barton argued CCTV footage showing Blencowe walking through Banbury and deliberately withdrawing cash before he boarded a train undermined any case for a ‘dissociative disorder’, as did the fact he lied to a taxi driver when he hailed a cab from the station to Tremble’s flat, saying he was from Leicester and called a friend on his mobile phone asking him directions and relating them to the cab driver.
Mr Barton said this was more indicative of a ‘planned murder’.
Mr Barton said Blencowe appeared to the taxi driver to be ‘relaxed’ after the incident and this was consistent with him “having achieved what he set out to achieve”.
He asked Dr Orr: “If he was elated afterwards that would be consistent with a planned murder wouldn’t it?”
Dr Orr replied: “Sometimes such a tragic or emotional event can appear cathartic.”
Defence statements were due to get under way yesterday (Wednesday).
The trial continues.