A violent teenage enrolled at a UK school has been convicted of killing an aspiring Royal Marine - a year after gunning down two fellow Afghans with an AK-47.
Experienced killer Lawangeen Abdulrahimzai's pretended to be a 14-year-old schoolboy despite being 18 years old when he arrived in the UK.
While claiming asylum to enter the country, authorities had no idea about his gruesome history.
