Very unusual for a female to exhibit this psycho behavior and thought pattern. But maybe this is biologically a mail identifying as a female?
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From what I’ve read about male serial killers, most are sexually aroused by killing, torture or dead bodies. I think she’s similar.
Just another crackhead keepin’ Austin weird.
Many are aroused by the sensation of power, having complete power over the victim. The climax is the exercise of that power, in the most final way.