premise: Police grappled Wednesday with the grisly task of identifying two new bodies found near a quiet English town gripped by fears of a prostitute serial killer, as the death toll rose to five.
  Detectives stepped up the search for forensic evidence after the discovery Tuesday near Ipswich of two corpses believed to be those of missing prostitutes Paula Clennell, 24, and 29-year-old Annette Nicholls.
  The finds bring to five the number of bodies found in less than two weeks near the eastern port town.
  They have evoked thoughts of one of Britain's most notorious serial killers, east London's elusive Jack the Ripper, who murdered five prostitutes in 1888 and was linked to several other killings.
  They have also revived more recent memories of Peter Sutcliffe, the "Yorkshire Ripper", who preyed on prostitutes and murdered 13 women and attacked seven others between 1975 and 1980.
   What does the finds refer to?
hypothesis: the death toll rose to five