The two Australian DJs whose prank call to the British hospital where pregnant Kate Middleton's stayed to treat severe morning sickness and may have led to the death of a nurse, have gone into hiding and will likely be probed by police.After a nurse was found dead two days after the hoax, new questions have been raised whether laws were broken by radio shock shock DJs Mel Greig and Michael Christian of Sydney radio station 2Day FM. British police have also contacted Australian police about a possible probe into the prank call, according to Associated Press.