When I first saw her picture I had her pegged for a coke-whore or a meth-whore. Her kid was living some where else and she was going out in the wee hours of the morning to get her nico and meth fixes.
There was something about the way she looked at the camera, or didn't look at the camera... not directly. She wouldn't have offered him crystal unless she wanted him turned on. You don't give a violent murderer meth unless you want more violence or... Did she have a rape kit done after all this?