Notorious 'chessboard serial killer' who brutally slaughtered 48 people poised to confess to 11 more murders / 'Wrote dhokhebaz on back of deceased': How police nabbed serial killer / Cause of death revealed for last suspected victim of infamous serial killer in Spain / How Jeremy Skibicki's 'unusual' defence compares to other serial killer cases / Spain on hunt for serial murderer 'The Orchard Killer' prowling countryside as 3 victims found brutally knifed to death / Teacher of govt school rapes, murders class 11 student / Widow of serial killer 'the Ogre' makes chilling statement in trial of kidnapping victims