Police investigate possible street racing link after two boys die in horror crash  Sydney Morning HeraldPolice investigate whether car was street racing after two boys die in horrific Sydney crash  9NewsTwo boys, 9 and 10, killed in horror crash in southern Sydney: police  PerthNowCops probe racing link to horror fatal  news.com.auBoys aged nine and 10 die after car crashes into tree at Monterey in Sydney's south  ABC News