US authorities are hunting accused Australian internet piracy kingpin Sean Patrick O'Toole after he failed to appear in an American court.
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US District Court Judge Amy St Eve issued a warrant for the arrest of the 26-year-old from Perth, who is facing a possible jail sentence for piracy.
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American authorities were unsure whether O'Toole is in Australia, the US or another part of the world and were examining border records to check if he has entered the US.
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O'Toole's American lawyer, Mary Cay Marubio, said she did not know where he was and was as surprised as prosecutors when he did not appear in court.
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"He did not show up," assistant US district attorney Pravin Rao, who is prosecuting the case, told AAP.