By Rachel Hagan A man has been found guilty of murdering a successful rapper who was shot in the face outside a pizza restaurant. Craig Small, 32, who went by the nickname “Smallz”, was a rival gang member and musician who had featured in a music video. Following an Old Bailey retrial, Courtney Ellis was found guilty of murder and attempted murder on Friday and was also convicted of perverting the course of justice alongside Christopher Kyei — both were said to be associated with a gang that operated in north-west London. Mr Small was standing outside a pizza restaurant in Wembley, north-west …