Dagger killer had been on ‘knife awareness course’

A teenager was jailed for 13-years for stabbing a schoolboy to death a month after he was sent on ‘a knife awareness course.’ Walker Sesay, 19, was in a group of men called in to deal with gatecrashers when a 16-year-old girl’s birthday party ended in chaos after it was advertised on Instagram. Che Labastide-Wellington, 17, was knifed through the heart as he tried to escape a ‘small army’ of youths who turned up outside the gathering in Harrow, northwest…