Alexander McCartney, 26, who admitted 185 charges involving 70 children, was given a life sentence with a minimum term by Mr Justice O'Hara at Belfast Crown Court on Friday.McCartney, who posed as a teenage girl to befriend young females on Snapchat before blackmailing them, is believed to be the UK's most prolific catfish offender with victims identified across the world.Twelve-year-old Cimarron Thomas from West Virginia in the US took her own life in May 2018 rather than comply with McCartney'

Alexander McCartney, 26, who admitted 185 charges involving 70 children, was given a life sentence with a minimum term by Mr Justice O'Hara at Belfast Crown Court on Friday.McCartney, who posed as a teenage girl to befriend young females on Snapchat before blackmailing them, is believed to be the UK's most prolific catfish offender with victims identified across the world.Twelve-year-old Cimarron Thomas from West Virginia in the US took her own life in May 2018 rather than comply with McCartney's demands for her to involve her younger sister in sex acts.