The jury have heard the closing arguments in the Jack Frew murder trial.
Craig Roy admits fatally stabbing Jack Frew in May 2010 but denies murder.
Prosecutor Jennifer Bain's closing comments said that the accused showed "utter indifference" to his victim. Defence QC David Burns asked the jury to return a verdict of culpable homicide due to diminished responsibility.
The prosecutor said in her closing comments:
"When Jack Frew left his home on the evening of 6th May 2010, he could have had no idea that he was leaving for the very last time. He could have had no idea that he would never again see his mother and father. At the age of 16 his life was cruelly taken from him.
"[Mr Roy] took the knife from the back of a cupboard and he plunged it into a defenceless man not once, not twice, not three times, but 20 times and then slit his throat from side to side... He did this despite the fact Jack Frew was unarmed. He did this with force sufficient to penetrate bone.
"The fatal injuries were inflicted with utter indifference as to whether Jack Frew lived or died. It may only have been a small knife, but it was deadly."
Regarding Roy's claims of Jack blackmailing him for sex, Ms Bain argued that the only evidence of this came from Roy himself. She said the text sent to Roy just hours before the fatal encounter may have sounded flirtatious, but that Jack was a naturally flirtatious person and had sent similar messages to other friends.
Mr Roy's QC urged the jury to reach a verdict of culpable homicide. He argued that Roy was the victim of a "catalogue of harrassment" by Mr Frew and a victim of blackmail. He also claimed that Mr Roy did not hide his actions and that it was not premeditated. Two different psychiatrists diagnosed Roy as suffering a personality disorder. Due to this condition he was unable to discuss his problems and would occasionally bang his head and scratch his face. Mr Burns said Roy's actions that day were "governed and dictated by his disorder of personality."
Mr Roy summed up his argument by saying:
"It would amply justify when he struck those blows he was not fully responsible for his own actions but only partially responsible."
The jury will retire to consider the verdict today.
Jack's friends have set up a Facebook group for his friends and family to share their memories of Jack. One member said "So much love on here, so much love on your facebook too...just so much love in general. You've got the love Jack! always loved, forever remembered".
