SButler’s Reviews > Sisters in Death: The Black Dahlia, the Prairie Heiress, and Their Hunter > Status Update

I wish there was more intext sourcing for where the author got notes of Elizabeth's thoughts. Unless she told someone what she was thinking in those moments, who gave a statement, i find it hard to believe that those were nothing more than simple guesses for what she was thinking. Unless the author spoke to her beyond the grave, which i will say here i do believe to be possible, then how were those details found?