2day FM radio hosts Mel Greig (L) and Michael Christian, pose in Sydney in this picture obtained by Reuters on December 8. The two presenters from Australia's 2Day radio station called a London hospital that was treating Prince William's pregnant wife Kate for morning sickness early on Tuesday British time, pretending to be William's grandmother Queen Elizabeth and his father, the heir-to-the throne Prince Charles. A nurse who answered the prank call has been found dead, the hospital said on Friday, in a suspected suicide. - Reuters/Southern Cross Austereo/Handout