Differentiating between serial murders, spree murders, and mass murders can be difficult, as some individuals fit into two or more categories. Compare and contrast the characteristics of a serial murderer, spree murderer, and mass murderer. Using web resources, provide a criminal example of each one and discuss the motivations behind the crime(s). Are the motivations similar or different across the three? Do you think psychopathy plays a role in all murders? Your initial post should be at least 250 words in length. Support your claims with examples from the required material(s) and/or other scholarly resources, and properly cite any references.