The Mindset of A Serial Killer

Jeffery Dahmer honestly is one of the most known serial killers, but like Psych0s said, he was indeed sloppy. I mean, he had to be under the influence of something in order to do it, he didn't conceal ANYTHING very well. He had a total of 17 victims in a 13 year time-span. He would go from just murdering his victims, to raping them, dismembering them, eating them, and even having sex with them. (Necrophelia). He went from one extreme to another. In Ohio, he committed his final murder which in turn he was sentenced a 16th life sentence.
In my opinion, he was afraid, because he did everything in his apartment; come on, really?
I mean, he isn't my favorite, but of course, I know about him and what he'd done.
I'm just not a huge fan.