A court has heard how a 12-year-old girl took her own life rather than give into the horrific blackmail demands of the UK’s most prolific catfisher.

Heartless Alexander McCartney tricked children into believing he was a young girl using platforms including Snapchat, before persuading them to send him intimate photos, reports the Mirror.

The ‘depraved’ 26-year-old would later reveal the lie to victims, taunting them and threatening to expose the images they had sent unless they carried out ‘degrading and humiliating’ acts for him.

The computer student targeted at least 70 victims in this way, and is suspected of preying on thousands of girls, some as young as ten, using the computer in the bedroom of his family home in rural Northern Ireland.

Belfast Crown Court heard how one victim, 12-year-old Cimarron Thomas from West Virginia in the United States, took her life using her father’s handgun rather than give into McCartney’s twisted demands.

Cimarron Thomas with dad Ben and mum Stephanie
Cimarron Thomas with dad Ben and mum Stephanie (Image: Facebook)

McCartney posed as a girl under the name Sarah 131X. He tricked Cimarron into sending him intimate photos and then threatened to send them to her family unless she complied with his demands, prosecutor David McDowell, KC, told the court.

The “terrified and distraught” child pleaded with McCartney, begging him to leave her alone but he told her he would start “spreading” the photos unless she gave him what he wanted. She messaged him saying “I will shoot myself…”

McCartney cruelly replied “Goodbye and good luck.” Following their chat, Cimarron’s younger sister discovered her sister dead on the floor of their parent’s bedroom with a gunshot wound to the head and her father’s handgun nearby, the court heard.

18 months after her heartbreaking death, her father – overcome with guilt and grief – took his own life, Mr McDowell said.

McCartney was later charged with her manslaughter despite the two never having met. He admitted the offence along with a further 184 counts, including blackmail, inciting a child to engage in sexual activity and producing and distributing indecent images of children.

McCartney will be sentenced next week
McCartney will be sentenced next week (Image: Facebook)

The court heard how the “particularly callous” 26-year-old targeted victims aged 10 to 16, some of whom were gay or exploring their sexuality. McCartney also lied about his age and gender – posing as a fellow teen with insecurities about their body in order to trick his victims into sending pictures of themselves. Then he “degraded and humiliated them,” the court was told.

The harm he caused was described as “unquantifiable”, a barrister said, with much of the detail in the case too graphic and disturbing to report – the judge called it “excruciating” in a pre-sentence hearing. Some of the acts involved younger siblings or family pets.

In an impact statement, the distraught grandparents of Cimarron Thomas said: “Our lives will never be the same. We didn’t get to see her graduate, walk down the aisle or have children. We have been robbed of those memories. Our lives have changed forever.”

McCartney has been on remand in prison since 2019 when he was arrested following a police investigation sparked after a girl in Scotland reported she was the victim of catfishing. He targeted victims in Britain, Australia, New Zealand and the US.

Mr Justice O’Hara said McCartney will be sentenced next week.

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