Who is Dassie from Season of the Machete and what is their importance?

Colonel Dred is an island revolutionary thought to be responsible for the initial murders. It's said that Monkey Dred takes responsibility though it's never clear whether he said that his revolutionaries were responsible or someone from Damian Rose's operation told the media that story. In any case, Dred becomes the prime suspect from the beginning, pulling interest away from what Peter has to say about the man he saw near the first murders. Dred does become part of the scheme. Damian provides arms for Dred's army, and those soldiers shoot up the tourist bus at Elizabeth's Fancy.