Matthew Williams, 50, was jailed for eight months over the sickening images (Picture: SWNS)

A perverted gym instructor who edited pictures of schoolgirls into explicit pictures was rumbled when his horrified wife found his files.

Matthew Williams, 50, used photo-editing software to alter innocent photographs of youngsters who studied at the school where he worked.

For more than three years, under the nose of his family, the dad-of-two doctored the images to make it appear as if the girls were performing sex acts with him at his marital home.

His wife eventually came across the sickening images and reported them to teachers, but there was nothing stopping their 12 and 16-year-old children stumbling upon them first.




The alarm was raised with staff at Shipston High School in Shipston-on-Stour, Warwickshire and police arrested Williams later that day at his family home in Kingswinford, West Midlands.

The coach was compiling images for years under his family’s nose (Picture: SWNS)

He went on to plead guilty to three charges of making indecent images of children between July 2015 and December 2018.

He was jailed for eight months and ordered to register as a sex offender for ten years at Warwick Crown Court on Monday.

Sentencing, Judge Sylvia de Bertodano said: ‘You are here because of images your former wife found on your computer.

‘Many of them were images of real children being abused sexually, but a small number were images that had been made by you of children you knew, or had come across through your work, which were made into sexualised images of them.

‘This collection of images you collected over three years was kept on your family computer, used not only by you, but by your wife and children, aged 12 and 16.

‘It is fortunate it was not your children who found them, but they easily could have done.

‘When you look at images of children in this way, you are looking at images of real children being sexually abused.

‘Your case has the added really unpleasant feature that you made pictures of children you knew, and used those legitimate pictures to turn them into sexualised pictures of those children as if they were being abused.’

Williams’ marriage had already been under a great deal of strain after he had an affair, and in December 2018 his wife began to suspect he was still cheating on her.

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So when he was out one night, she checked their laptop and came across a file which could not be viewed without the use of a memory stick.

She spotted one by the computer and found at least two folders which contained thumbnail images of underage girls

There were also close-up pictures of him exposing himself in their living room, some of which had been doctored to make it appear girls were performing or about to perform oral sex on him.

The images also had comments attached to them listing the correct names of the children pictured.

Williams worked as a sports coach at several schools in south Warwickshire, some of which those girls attended, although they were taught by him.



Police found 500 indecent images of children when they seized the teacher’s computer and memory stick.

They included seven of the most serious category A pictures showing girls being subjected to penetrative sex acts.

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Six of them were ‘pseudo-images’ in which innocent images of girls taken from legitimate sources had been doctored to make it appear they were taking part in sexual activity.

When he was interviewed, Williams admitted using photo-editing software to alter the sickening pictures.

Graeme Simpson, defending, said the offences came about at a time of a deteriorating relationship with his wife.

Asking the judge to pass a suspended sentence, he said his client was receiving therapy and has been in contact with the Lucy Faithful Foundation, which works with sex offenders.

Following his arrest he left their home and was now living with his mother from his original hometown of Dudley, West Midlands.

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