Berwyn Jones: > Unrhyw gynigion heblaw 'cyfreslofrudd/cyfresladdwr' neu 'lladdwr cyfresol'? Non <[log in to unmask]>: >Mae Llion Iwan yn iwso 'lladdwr lluosog' wrth gyfeirio at'i nofel newydd, Euog. Efallai bydd angen gwahaniaethu rhwng 'serial killer', 'spree killer' ayb http://en.wikipedia.org/wiki/Serial_killer * A serial killer is someone who commits three or more murders over an extended period of time with cooling-off periods in between. In between their crimes, they appear to be quite normal ... * A mass murderer, on the other hand, is an individual who commits multiple murders in a single event and in one location. ... * A spree killer commits multiple murders in different locations over a period of time that may vary from a few hours to several days. Unlike serial killers, however, the spree killer does not take a long break or resume everyday life between slayings.