Summary: Nigerian-origin brothers, including one nicknamed “Killer,” convicted of systematic sexual abuse against children in Sheffield, UK, following landmark 18-year investigation by National Crime Agency.
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In a case that has shocked communities both in the United Kingdom and beyond, three brothers have been convicted of horrific sexual offences against four children and one woman in Sheffield, nearly two decades after their crimes were committed.
The eldest brother, Amar Ilyas, 41, known by the chilling nickname “Killer,” led a reign of terror that lasted several years, using weapons, drugs, and threats to abuse vulnerable young girls. His two younger brothers, Kamran Ilyas, 38, and Kamar Ilyas, 39, were accomplices in these devastating crimes.
A Case That Took Nearly Two Decades to Solve
The convictions are the result of Operation Stovewood, a specialized National Crime Agency investigation dedicated to uncovering non-familial child sexual abuse in Rotherham between 1997 and 2013. This operation represents the single largest investigation of its kind in British history.
Amar Ilyas was convicted in September 2025, but this could only be reported after his brothers’ trial concluded on Monday, 9 March 2026. The delay in reporting underscores the complexity and sensitivity of the case.
The Pattern of Abuse
The investigation began in 2018 when Operation Stovewood officers contacted a woman from Rotherham, now in her 30s, who they identified as a possible victim. What she revealed opened a Pandora’s box of systematic abuse.
The First Victim’s Ordeal
Between 2004 and 2008, when she was just 12 years old, this woman was groomed by Kamar Ilyas through phone calls. He was 17 or 18 at the time. He lured her to various locations across Sheffield where he sexually abused and raped her.
Kamar then introduced the child to his elder brother, Amar, who subjected her to weekly rapes for three years—in parks, houses, and his car. Though he occasionally gave her perfume and jewellery, the woman recalled living in constant fear that he might harm her family.
On one horrifying occasion, Amar gave her a cigarette laced with crack cocaine before raping her. Another time, he showed her a handgun he kept in his car before taking her to a wooded area and assaulting her.
During this same period, the youngest brother, Kamran Ilyas—then around 17 years old—also sexually abused the girl at a flat and playground in Sheffield.
More Victims Come Forward
As investigators dug deeper, they identified four more women who had suffered at Amar Ilyas’s hands:
The Second Victim was around 13 when she woke up one night at a friend’s house to find “Killer” raping her. When she tried to resist, he told her to be quiet and only stopped when another man entered the room.
The Third Victim met Amar when she was about 13 and he was 18. He visited her at home in Sheffield, initially appearing friendly but gradually introducing alcohol and drugs. He then raped her twice in her own bedroom.
The Fourth Victim was 18 or 19 when Amar spotted her alone near a park in Sheffield in 2004. Pretending to offer her a ride, he took her down an alleyway and raped her after threatening that she would be forced to perform sex acts on his friends if she refused.
The Fifth Victim was 16 when Kamran Ilyas met her at a shopping centre and drove her to a park where Amar was waiting. When she got into Amar’s car, he bit her face and raped her. During the attack, he grabbed a spanner from the car floor and threatened to hit her if she didn’t stop crying.
Justice Delayed but Not Denied
All three brothers were arrested in June 2020 and charged in March 2023. However, after being released on unconditional bail, Amar Ilyas fled to Pakistan and failed to appear for his trial. He was convicted in absentia on 24 September 2025 of all 20 sexual offences and one charge of possession of a firearm with intent to cause fear.
Sheffield Crown Court has issued a warrant for his arrest, and officers from Operation Stovewood and the NCA’s Joint International Crime Centre are working to locate and apprehend him.
Kamran and Kamar Ilyas have been remanded in custody and are scheduled to be sentenced at Sheffield Crown Court on 22 June 2026.
The Courage of Survivors
National Crime Agency Senior Investigating Officer Alan Hastings praised the victims’ bravery: “Despite the horrendous abuse all five women have suffered, they have shown great courage and absolute determination to see the perpetrators face justice, which our investigation has ensured for them all.”
Martin McRobb, Specialist Prosecutor for the Crown Prosecution Service, echoed this sentiment: “I want to once again recognise this woman for her immense courage in coming forward and for remaining supportive of a complex investigation and lengthy legal process. Her determination and strength in seeing this case through has been crucial in bringing these offenders to justice.”
A Landmark Investigation
Operation Stovewood continues to be the largest investigation of its kind. To date, 52 people—including the Ilyas brothers—have been convicted and received custodial sentences totalling more than 1,500 years.
The case sends a powerful message: no matter how much time has passed, perpetrators of child sexual abuse will be pursued and brought to justice. It also highlights the importance of survivors coming forward, no matter how difficult, knowing that their voices will be heard and believed.
For communities in Nigeria and around the world, this case serves as a reminder of the global nature of the fight against child abuse and the need for continued vigilance in protecting our children.
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