article_snippet: Scroll down for video .
article_snippet: The young man from Melbourne has previously sent a series of sickening tweets to federal police in The young man from Melbourne native Australia - threatening to carry out attacks on The young man from Melbourne home country. '
article_snippet: In one of the messages, the deceased extremist boasted that the Sydney Lindt cafe siege was 'just the beginning for you dogs'.
article_snippet: Insults: In a series of tweets around Christmas time, Bilardi purportedly threatened more attacks after following the Martin Place siege .
article_snippet: Threatening: In this message, Bilardi is referring to a call by an Islamic State religious leaders to commit graphic crimes against Americans, Frenchmen or their allies, including Australians .