Teenager convicted of leaving friend blind and paralsyed

A teenager who left a 17 year-old college student blind and paralysed after stabbing him in the heart during a petty row outside a supermarket is facing jail. Tyrese Osei-Kofi, 18, pulled out a knife and attacked his friend Jamel Boyce just a few hours after the pair were captured on CCTV laughing and joking together at a McDonald’s. Jamel, who was nicknamed ‘Smiley’ by fellow pupils at St Francis Xavier sixth form college in south London, suffered permanent damage…