Machete wielding youths locked up for life after stabbing schoolboy to death

Two machete-wielding youths who smiled as they fatally stabbed a 14-year-old schoolboy on a bus have been locked up for life.Aspiring rapper Kelyan Bokassa called "I want my mum" after he was mortally wounded in front of horrified passengers aboard the a route 472 bus in Woolwich, south-east London, on January 7.His killers, aged 16, pleaded guilty to Kelyan's murder and having a knife.Judge Mark Lucraft KC detained them at His Majesty's pleasure for life.