A British court jailed a man who wrested control of the computers of girls as young as 13 in order to blackmail them for his sexual gratification. The Inner London Crown Court sentenced 36-year-old Adrian Ringland from the northern English town of Ilkeston to 10 years in prison after he pleaded guilty to blackmail, indecency with a child and grooming, a term used to describe methods paedophiles use to befriend their victims.