Left largely to his own devices he became defiant, violent and brooding with an unhealthy fascination with knives, the occult and drugs. He was first brought to the attention of the mental health profession aged just 11, following a fight at King’s Park Primary in Dalkeith. Although the incident was just a minor skirmish with another pupil, Mitchell’s attitude was sufficiently troublesome to warrant a referral to a school psychiatrist. However, there appears to have been little further action taken by the education authorities or his parents to curb his behaviour.
When he was 12 he threatened his then girlfriend with a knife because she refused to have sex with him. The incidents went on. When he moved to St David’s High, a music teacher found him trying to throttle another pupil and he was sent to an educational psychologist. He refused the expert’s help. Instead Mitchell became a rebellious, mysterious teenager who was heavily into cannabis and supplied his Goth friends with the drug.
He also appeared to have an unhealthy interest in the occult. The jotters at his Catholic school were daubed with Satanic slogans, and he wrote a school essay containing references to the devil. Yet teachers appeared to have little control over him and he would simply defy their instructions when it suited him.
Even more worryingly, he also acquired a fascination with knives. His older brother, Shane, had a knife collection and Mitchell gathered his own array. At a party six weeks before killing Jones, he repeatedly jabbed her in the leg with a knife he had been using to cut up cannabis.
Although she was clearly devoted to Mitchell, Jones was not his only girlfriend. He had also been seeing at least two other girls and may even have been grooming them to see which would make the most suitable victim.
One of them was Kara van Nuil, now 17, who met him at army cadets in 2003. He wooed her with romantic text messages but their relationship ended abruptly after he followed her into the cadet hut one night, crept up on her, put his arm around her neck and placed a knife to her throat. Later he tried to laugh it off but van Nuil had been terrified. One month later he killed Jodi Jones.
Another of Mitchell’s girlfriends was 15-year-old Kimberley Thomson, from Kenmore, Perthshire who he had been seeing for about a year before the murder. They had met while he was on holiday and kept in touch. Her resemblance to Jones was uncanny.
Mitchell had arranged to go and stay with Thomson for a fortnight shortly after school broke up. At some point, he was going to have to break this news to Jones.
Dobbie said: "There is a potential Jodi found out about Luke’s planned holiday with Kimberley that Monday. I think he told her at lunchtime."
That conversation may have taken place at one of their favourite hideaways, an alcove off King’s Park, Dalkeith, known locally as the China Gardens. It was a place for teenagers to gather and smoke. They lit up a joint and sat alone until a friend joined them.
Dobbie added: "I am making an informed hypothesis about how Jodi may have known that day. That in itself would certainly have been a cause for her to want to see him that night."
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http://www.edinburghnews.scotsman.com/news/natural-born-killer-1-1401861#ixzz3rOWawKQb