Suspected double cop killer Dezi Freeman previously posed as a firefighter to sneak through emergency police roadblocks to evade detection and defy the law.
Freeman, 56, remains on the run after he allegedly gunned down Detective Neal Thompson, 59, and Senior Constable Vadim De Waart, 35, at his rural property in Porepunkah in the Victorian High Country on Tuesday.
Ten officers attended his home to serve a warrant for historic sex assault charges involving a minor, when the father of three allegedly opened fire, killing the pair and wounding a third.
Freeman allegedly stole the dead men's service pistols and seized a police radio before fleeing into the bush, and has not been seen since.
Freeman has now been on the run for four days as 450 heavily-armed police, special operations units and air support scour the surrounding mountains in one of the largest manhunts in Australian history.
