SYDNEY - An Australian teenager facing terror charges allegedly discussed stuffing a kangaroo with explosives, painting it with the Islamic State group symbol and setting it loose on police, media reported Thursday citing court documents. Sevdet Besim, 19 - who was arrested in counter-terrorism raids in Melbourne in April - pleaded not guilty to four charges related to planning an attack during Anzac Day commemorations for Australian and New Zealand Army Corps troops who died in combat. A fifth charge of conspiring to commit a terrorist act was dropped.