Serial, Mass, Spree, and Sexual Murderers Discussion Board

The terms, "serial killer," "mass murderer," "spree killer," and "sexual murderer" get thrown around in the media and television as if they are synonymous.  How are they different and why is the difference important in regard to death investigation? Please justify your answers. Be sure to support your opinions with credible research and to cite and reference your sources in APA style. Remember, writing mechanics count in every post you make.

HERE IS A LINK TO HELP:

http://www.practicalhomicide.com/articles/staging.htm