A PATHOLOGIST has told the jury Connor Tremble died of complications after he was stabbed 15 times.
Expert witness Dr Alexander Kolar started giving evidence this morning in Oxford Crown Court about the injuries the 17-year-old suffered on February 13 this year.
Will Blencowe is on trial and denies Connor's murder, but he does admit inflicting the injuries which led to the teenager's death two days later in the John Radcliffe Hospital.
Opening the case prosecutor Richard Barton said the 21-year-old would argue he was suffering from a mental condition and was also acting in self defence.
Dr Kolar said on February 14 surgery was carried out to try and reduce the swelling on Connor's brain caused by a loss of blood.
But he told the jury this was not enough to save his life and he was pronounced dead the following day.
Describing Connor's injuries, Dr Kolar said he suffered stab wounds to his arm, chest, abdomen, back, buttocks and leg.
Charles Ward-Jackson, prosecuting, asked him: "It is right isn't it, that 10 of the wounds were to the back of the body?"
Dr Kolar agreed and also described a 9cm would which went right through Connor's left arm.
He said: "We have here an injury that could be compatible with a defensive type action."
The pathologist also identified stab wounds which penetrated the teenager's organs, causing a large amount of blood loss.
Bradley Jones, 21, of New Road, Bledington, and Grant Clemens, 23, of Stockwells, Moreton-in-Marsh, are also on trial and both deny perverting the course of justice.
The trial continues.
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