A violent porn-obsessed "sexual deviant" and "potential serial killer" has been handed a whole-life jail term for luring a policeman's teenage daughter to his home before hanging her and abusing her body.
Jamie Reynolds, of Wellington, Shropshire, was sentenced at Stafford Crown Court after previously admitting murdering former head girl Georgia Williams.
Mr Justice Wilkie, sentencing, agreed with a psychiatric report that Reynolds, who had meticulously planned and executed his crime on Sunday, May 26, while his parents were away, "had the potential to progressing to become a serial killer".
The judge said Reynolds had plotted his murder "to give sadistic pleasure".
"You watched her die in circumstances where you could have saved her - and doing so was a central part of your pleasure."
The judge added: "After the killing you took sexual pleasure in her body, then treated her body with contempt, dumping her in a remote area."
He went on: "You intended to continue to derive sexual pleasure by photographing these events, keeping them with you, and secreting her clothing and jewellery."
Mr Justice Wilkie said Reynolds had a "long-standing preoccupation with violent and sadistic pornography" and his victim "must have suffered terribly".
Continuing to address Reynolds, who stood head bowed with his hands clasped behind his back, he said: "This is not a marginal or borderline case.
"I am in no doubt the seriousness of your offending, so a whole-of-life term is the starting point."
He added: "I take very seriously the conclusion of (psychiatrist) Prof Paul Peckitt that you have the potential to become a serial killer."
The judge added he was satisfied Reynolds had "been obsessed" with carrying out his sadistic fantasy for at least five years.
"My conclusion is that I am of the opinion that because of the seriousness of this offence no minimum term should apply."
Prosector David Crigman QC said Reynolds carried out a "scripted, sadistic and sexually-motivated murder" and planned the killing of the 17-year-old meticulously.
Outlining the case before sentencing, Mr Crigman described Reynolds was a manipulative individual and "a sexual deviant" who has had "a morbid fascination in pornography depicting violence towards young women in sexual context since at least 2008".
In May, Reynolds invited Georgia for a photo-shoot at his parents' home in Avondale Road, Wellington, Shropshire, where he trapped and killed the defenceless teenager.
Reynolds then posed her body, both partly clothed and naked, in different parts of the house including on his parents' bed.
Georgia's father Steven - a serving detective with West Mercia Police - mother Lynnette and sister Scarlett left the courtroom as the prosecution opened its case in graphic and chilling detail, charting what it called Reynolds's "meticulous" planning of the murder, and the disposal of his victim's body.
Across the room, Georgia's boyfriend Matthew Bird gazed at Reynolds as the facts of his crime were laid bare in Mr Crigman's submissions.
Throughout the hearing, Reynolds, wearing a two-piece suit, purple shirt and tie, sat slumped in his chair in the dock gazing down at his hands.
At a hearing earlier this month he pleaded guilty to murdering Georgia, who had spurned his romantic advances.
Mr Crigman said at the time of his arrest for murder, Reynolds had 16,800 images and 72 videos of extreme pornography stored on an external computer hard drive, including digitally doctored images of up to eight other women he personally knew in which ropes had been added around their necks.
Mr Crigman said the defendant had also annotated these images with male genitalia, also referring to the girls in a derogatory manner and daubing some with "crude language" of a sexual nature.
Reynolds had also written 40 graphic short stories involving a fatal assault on a woman, "followed by acts of sexual violation", according to Mr Crigman.
It also emerged in the prosecution case that Reynolds had written a "script" in which he described in detail trapping and killing a victim.
Mr Crigman said in regards to murdering Georgia, Reynolds - who appeared particularly taken with red-haired women - had followed "a good deal of his pre-written script".
Texts and messages between Reynolds and Georgia were read out in which he shared his romantic feelings for the teenager - an advance she rebuffed, telling him in February: "I don't see you in that way. Just stop, I don't want to ruin our friendship. I told you last time, I just wanted to be friends."
Mr Crigman said Reynolds's fascination with Georgia appeared undeterred and he had written a gruesome story on his mobile phone entitled "Georgia Williams in Surprise" in which she died following a sex game. It depicted the victim as a willing participant.
That element, Mr Crigman said, could not have been further from the truth.
In May, Georgia accepted Reynolds's invitation to take part in a photo-shoot at his parents' house while they were holidaying in Italy.
Reynolds had bought items including a rope, learning to tie a noose and attaching it to what Mr Crigman described as a "hanging mechanism" fitted to the loft hatch in the house, above the landing.
He also bought a leather jacket, leather shorts and high heels for Georgia to wear during the "shoot" and in a chilling message beforehand told her he wanted to take a photograph of her "like simulation hanging, but you'd be standing on a box".
"I'd edit that (the box) out on a computer to make it look like you're floating, are you ok with that?" he said.
Georgia did not reply, but turned up at the house on the evening of Sunday May 26, telling her parents and sister where she was going and that she would only be a couple of hours.
Mr Crigman said that as she walked the short distance from her parents' home, there was evidence Reynolds watched extreme pornography "to stimulate himself".
After her death, police recovered several seemingly innocuous photographs which they say were taken by Reynolds showing Georgia "happy" and "compliant" and fully clothed, wearing make-up, The final photographs showed her standing on a red recycling box, hands seemingly bound behind her, with the rope hanging above her, Mr Crigman added.
The prosecutor said: "Photo 12 displays the correct time - 8.20pm. Her face still does not depict any sign of alarm and that is in fact the last photo of her alive."
Reynolds was arrested in Glasgow following a manhunt on May 29 after Georgia's body was found in secluded woodland near Wrexham.