A series of videos featuring serial killers created by a 'women-hating' teenager who stabbed a girl at his school have provided a disturbing glimpse into his sinister obsessions.

The boy was just 15 when he attacked his innocent victim at Thorpe St Andrew School near Norwich in Norfolk, triggering a lockdown while armed police hunted for him in the area.

Some of the footage found on his phone was released by Norfolk Constabulary yesterday after he was convicted of attempted murder following a two-week trial.

One shows a bizarre scene with two notorious US multiple killers – Edmund Kemper and Ted Bundy – dancing alongside a third, unidentified individual.

Kemper, known as the Co-Ed Killer, murdered eight people in California between 1972 and 1973, including six female college hitchhikers, his mother, and her friend.

The 6ft 9ins brute, now 77, who was only caught when he turned himself in to police, had previously slain his paternal grandparents as a teenager.

Bundy raped and murdered dozens of young women he kidnapped in several US states, including Washington, Colorado and Florida, between 1974 and 1978 by luring them to his vehicle while posing as an authority figure.

He was executed by electric chair in 1989 at the age of 42.

The video appears to have been made on Viggle.ai, a platform that uses AI to animate still photos.

It is set to a remix of English singer-songwriter Imogen Heap's 2005 song Headlock, which fans say is about self-doubt and emotional stagnation. 

A suicide note written by the teenager and found pinned to his bedroom wall spoke of the 'barren world' he believed he lived in.

The boy, who is facing a long jail term after the unanimous verdict at King's Lynn Crown Court, also created a montage of stills and footage involving Paul Spector, the evil killer from BBC series The Fall.

Believed to have been created with the CapCut app, it opens with a photo of Spector, played by Jamie Dornan, with the caption 'Me btw [by the way]'.

A brief scene shows the Spector dressed in black and removing a mask – the same clothes the boy wore during the unprovoked attack at Thorpe St Andrew School, near Norwich, on March 11.

The fictional murderer also appears dancing to jangling music, superimposed over a map of Belfast where the bleak drama is set.

The schoolboy, who is now 16 and can't be identified for legal reasons, was arrested by armed police near the mixed secondary school shortly after the unprovoked attack.

His victim luckily escaped with minor injuries to her back and was discharged from hospital the following day.

The trial heard that other serial killers the teenager obsessed over included 'Suffolk Strangler' Steve Wright, who killed five Ipswich prostitutes in 2006, and fictional character Dexter Morgan, a serial killer vigilante from hit US programme Dexter.

Notes found in his bedroom included one that said he had 'seen killers being admired, I want admiration, gratification. I've wanted this for years. I don't care who I hurt. Not anymore'.

Another spoke of his 'hatred for women' following the 'failure of a relationship'.

He also indicated a possible motive, writing about 'misanthropy, misogyny, suicide, bullying'.

The victim, who was also 15 at the time, told jurors she didn't know her attacker and had never even heard of him.

In his opening speech, prosecutor Christopher Paxton KC said the boy had an 'obsessive and dangerous interest in killers and killing' and a 'hatred for women'.

He added: '[He] went to school not to learn but to kill, taking with him a kitchen knife.'

The schoolboy showed no reaction yesterday after the jury took less than four hours to reach their unanimous verdict, which was greeted with silence by members of the public, including some of his relatives who were in the public gallery.

His victim, who was sat in court with members of her family, wept as she left afterwards.

Mr Justice Lickley KC adjourned sentencing until December 18 to allow reports to be prepared.