'Incel' teenager who collected bomb-making videos and threatened school shooting is jailed

A former Army cadet obsessed with far-right ideology and the Islamic State has been jailed after he terrorised two schoolgirls, collected bomb-making videos and threatened a Valentine's Day shooting.

Dihan Rahman was aged 17 when he made a Nazi salute and held a rope noose in selfies, as well as posting personal details of two girls and a teacher online during a stalking campaign.

The schoolboy was said to have an extreme hatred of women and Jewish people and often viewed neo-Nazi content.

He also made threats to attack his school's prom via Snapchat and TikTok, as well as to carry out a school massacre.

Rahman's electronic devices and notes revealed a "mixed" ideology touching on the extreme right-wing, Islamic State, Incel and misogyny, prosecutor Serena Gates KC said.

She told the Old Bailey: "The common ground is the hatred of Jews and there is also material on how women are treated within those ideologies."

The defendant, now aged 19, had also been a "trusted" administrator of an extreme right-wing network on Telegram, having pretended to be a white youth, the court heard.

He pleaded guilty to three counts of stalking and three counts of possession of indecent images.

On the second day of his trial, Rahman, from west London, admitted three charges of possessing documents useful for terrorism.

They included a video on how to make TATP explosives and a pipe bomb tutorial.

Judge Simon Mayo KC sentenced him on Wednesday at the Old Bailey to four-and-a half years in prison with an extended licence period of three years.

He told Rahman: "This is not a case of a single lapse or a moment of poor judgment. Much of the behaviour was planned, concealed, and persistent.

"It occurred over a prolonged period and, significantly, it continued even after the police became involved and you were subject to bail conditions."

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His stalking, which included making malicious professional complaints against the teacher, was "persistent, calculated and highly intrusive", the judge said.

Judge Mayo added: "The impact of your stalking was severe and enduring. The two young women lived in constant fear, altered daily routines, withdrew socially and restricted online activity.

"Their education suffered, a school prom was relocated twice with additional security, and one of the young women ultimately changed colleges. Both continue to experience anxiety and loss of confidence.

"No sentence I can pass will remove the anxiety, fear, and psychological harm which you caused your victims."

The judge noted the defendant's autism spectrum disorder, emotional immaturity and social isolation, but said these factors did not excuse his behaviour.

Previously, the court heard how problems began in 2023 after Rahman started taking pictures of one of the girls and her female friends, then began "spamming" her social media accounts.

After he was banned from the cadet base, Rahman posted on Snapchat and TikTok that he planned to "ruin prom", forcing organisers to change the venue twice.

When complaints were made to a teacher, she seized his phone and saw a photo of the defendant in a cadet uniform holding a noose, and a picture of Rahman with a headscarf around his face with an image saying "who's in for a Valentines school shooting".

Another picture showed Rahman in Army uniform with the words "kill yourself", images of Adolf Hitler, Saddam Hussein, beheadings and dead bodies, as well as depictions of violence against women.

Jurors were shown pictures of Rahman in military fatigues, giving a Nazi salute and holding a green cord tied in a noose.

Rahman was arrested at his home on 15 March, 2024, and granted police bail on condition he stay away from the girls, which he failed to do.

In November 2025, Rahman was arrested again, and an examination of his laptop revealed he had made 83 searches for the first girl that month and he was remanded in custody.

(c) Sky News 2026: 'Incel' teenager who collected bomb-making videos and threatened school shooting is jailed