Teen robbers lured unsuspecting victims into terrifying knifepoint attacks after they'd agreed to buy or sell iPhones on Facebook Marketplace.
One victim feared he was going to be killed after he had a knife held to his throat, while a pregnant woman was caught up in one horror attack.
Ringleader Nana Vandevelde, 19, who said he plotted the robberies to pay off a drugs debt, has been jailed for five-and-a-half years.
