Yes, I'm pretty sure I know who killed my mom. Please read this thread, as I've provided all kinds of concise details about my mothers murder, newspaper clippings, the investigation, and the findings in the Medical Examiner's report. When you read the details, you might see that the situation of my mom's murder doesn't match that of your mom's assault. However, my mom lived with this man, who was a serial killer. I just happened to live there with them, and thus have inside knowledge of living with a SK, who shot another woman in the head (with witnesses), 'disappeared' another woman after she was leaving him (same circumstance as my mother), and who knows what other women fell victim to him. For what I know, my mom was his only LM victim; the rest were in Houston along I-45 north.
I went to high school and was good friends with Jessica Cain, so I research this for multiple reasons (not only for mom). Also, I'm friends now with the children of the other woman killed by the same man who murdered my mom. I'd love to help them find closure, since she was never found.
However, I'm still curious about your post about how your dad might be linked to the Killing Fields proper? Is that also a location-based guess, or do you have additional knowledge about links that haven't been provided? What was your dad's weapon of choice? Was rape always his goal? Did he have any other types of offenses, like auto theft or B&E? What is the timeline of his imprisonment, and what years was he living in Alabama versus when he resided in Texas? These are all very important questions to answer, in order to make (or eliminate) links to other cases.
In regard to your mom & Gayle: What was their profession? (Meaning no disrespect) Were they on drugs? Did they frequent any particular clubs/bars often?