Police witnessed stabbing of teenager

A gang of teenagers stabbed a 15-year-old to death as a police van drove by, a court heard. Joseph Marafini, then 15, was murdered outside Sainsbury’s in Garratt Lane, Earlsfield, shortly before 5pm, on 29 October last year, Kingston crown court heard. Imran Boudjellel, 20, Abdulraheem Sanusi, 19, Shaun-lee Martini, 19, and two boys aged 17 and 18 allegedly surrounded Joseph and stabbed him in the chest and neck with a 26cm knife. A police carrier happened to be driving…