A teenager who sent thousands of hoax bomb threats to schools and triggered an American airline security scare has been jailed for three years.
19-year-old George Duke-Cohan, sparked nationwide panic and a transatlantic investigation from the bedroom of his home in Watford, Hertfordshire.
He pleaded guilty at Luton Crown Court in September to three counts of making hoax bomb threats.
It followed an investigation by the National Crime Agency (NCA).
Duke-Cohan, of Mutchetts Close, caused widespread panic in March when he emailed more than 1,700 schools, colleges and nurseries across the UK to warn about an explosive. Hundreds of the schools were evacuated.
He was arrested days later but in April, he sent another batch of hoax emails to schools in the US and UK.
NCA investigators, working with the FBI, also found that while on bail for the bomb hoaxes, Duke-Cohan had made a fake report of a hijacked US-bound plane.