£20,000 reward offered in hunt for gunman after two die in gang violence

 Lemar Urquhart, 27, was killed in Brixton on October 30 along with delivery driver Guilherme Messias da Silva, who was knocked off his moped and died.

Lemar Urquhart, 27, was killed in Brixton on October 30 along with delivery driver Guilherme Messias da Silva, who was knocked off his moped and died.