The son, a detective, of Dr. George Hodel whom the son believes to be the Black Dahlia killer, thinks his dad may in fact be responsible.
Here is the Most Evil show I saw via You Tube where it highlights the crime and features an interview with Bill Heirens (interview at 10:20 or so into the video):
Here is the son of Dr. Hodel talking about his dad and the lipstick killings:
Lastly, if Bill Heirens wasn't the killer what an awful injustice to be locked up for 60+ years for a crime you didn't commit. If he in fact was not the Lipstick killer, rest in peace Bill Heirens.
In this video, son of Dr. George Hodel presents his theory that his dad may have been the Lipstick Killer.
They gave him sodium pentothal and a spinal tap. Yikes.