[Howlin]

Serial killers don't go to great lengths to dispose of their victims.

Neither do random killers.

[MHT]

To the contrary--many serial killers DO go to great extremes to get rid of the body and messing with the body can become as important a ritual as the killing or victim selection itself. That is why when a serial killer is finally found, there is always speculation that there were more victims that they didn't find. Look at Dahmer and John Wayne Gacy. Sometimes body disposal is the "signature" of the killer.