 SPOILER: Moustapha Akkad (qv) (the executive producer) said that  the killer in H20 was not actually Michael Myers, but in fact a  copycat killer, and that this would be explained in the next  Halloween movie. The idea was dropped for  _Halloween: Resurrection (2002)_ (qv), which explained the  reappearance of Michael Myers by revealing that he had traded places  with a paramedic at the end of H20, who had then been mistaken for  Michael, and was subsequently beheaded by Laurie.