11:48 EDT, 9 February 2021 A drill-rapping jihadi bought an 18-inch gladiator-style blade and bullet-proof vest online, the old Bailey heard today. Sahayb Abu, 27, bought a sword, a knife, a combat vest, and a balaclava after chatting to his older sibling on iMessage about their fervent belief in ISIS, it was said. Muhamed Abu, 32, knew all about his relative's views and was under a legal obligation to tell the authorities what Sahayb was up to but did not, jurors heard. The pair were arrested following an operation involving the Met's Counter Terrorism Command at their London addresses in July 2020. Sahayb told police he was an online 'troll' mocking drill rappers who often wield weapons during their music videos.