The similarities with the Texarkana Killer in the 1940s is quite similar to the Zodiac Killings in the Bay Area of California in the 1960s.
Steve Hodel has written two books on the subject of the Zodiac Killer and has a suspect that even the Los Angeles DA had believed to have been the Zodiac Killer and the Black Dahlia Killer.
Detective Hodel writes in Most Evil: Avenger, Zodiac, and the Further Serial Murders of Dr. George Hill Hodel that it is impossible for Dr. Hodel, his father to have been the Texarkana Killer.
He confirms this in an email I received from him today, March 16th. He verifies that Dr. Hodel was in China during the Texarkana murders.
As Detective Hodel has had several decades on the job in Los Angeles as a homicide detective he has access to case files and experts that I can only dream of. The notes delivered to the police and Robert Graysmith from The Zodiac were compared to documents that Dr. Hodel had written in his work as a doctor and in personal communication to the family. A handwriting expert used by the Los Angeles County DA’s offices believes without a shadow of a doubt that the Zodiac and Dr. Hodel are the same person.
In a follow up email also dated today I responded to Dr. Hodel in regards to a theory I have on Dr. Hodel’s psychopathy in regards to other crimes.