Police have identified a group of young men they believe have significant information about the death of a 17-year-old Easter Show worker in April - and say people are keeping secrets .
The 15-year-old relative of a teenager stabbed to death at Sydney s Easter Show pleaded guilty to two charges - after shouting postcode gang phrases during his arrest for carrying a knife.
Sydney s streets have erupted in violence with the race to re-supply the nation s largest drug market sparking bloody gangland battles and among teenage groups fighting for territory .