The Black Dahlia Case Now solved after 50 years?

I was eating lunch and this interview with some lady talk show host (sorry don't remember the name of the show)on ABC, featured a homicide detective who had completed a book about his FATHER having been the killer of the Black Dahlia, a young woman who sought stardom in Hollywood, only to wind up being murdered.

Just a bit of background, but that is not the gist of what this thread is about. The fact that this homicide detective has written a book about his father being a serial killer (one of whom was the Black Dahlia) stunned me. The detective claimed that it was by the merest accident that he discovered concrete facts about his father, a psychiatrist, pegging him as THE serial killer of all times. Why would the detective do such a thing and how do you feel about it?

Folks, I searched the web concerning the very notorious Black Dahlia murder case, but I won't post the thread because it is entirely too gruesome. I'll leave that up to those who want to know more details.