She seems to have done no research into the assassination after the publication of the Warren Report.
She once thought ten people could testify that Oswald and Ruby were acquaintances, and allegations she was told like the rifle found on the sixth floor was a Mauser.
She was preparing a compilation book called Murder One.
The book contents were outlined in an article ((Journal-American, Nov. 8, 1965) and there was no reference to the book including the JFK assassination or Jack Ruby.
It was shredded?
The "pattern" becomes a trail of conspiracy, offering "peeks" at the dark state.
It seems this book came out long after she was dead and assigned her as a sole author? Who put the book together would be a better question - from whose perspective was it written for or by who exactly? It obviously didn't contain any significant material from her with regards to what she determined about Jack Ruby. Someone else wrote it. This means someone else plagiarized and used her name as author of her book and may have edited or allowed it to be edited/published as desired. According to author Mark Shaw, Ms. Kilgallen didn't have a good relationship with her husband and could have even been a possible suspect in her death. He mentions that not all the children she had were his. Obviously she died alone and the husband was not present, meaning she wasn't at home with him when they found her in bed with clothes on and a book laying there as if she was reading. He didn't find his wife, but the hairdresser did in the morning. She was likely estranged from her husband at the time.
She met someone at the bar the night she died. Obviously, in an investigation, they could have tried to determine if her doctor (or someone else?) prescribed the strange barbiturate cocktail she took or if it was slipped in her drink. Was it a matter of habit or routine or did she buy the 3 different drugs while drinking at the bar for an extra kick? One would expect this as a routine investigation of someone so famous. Was this investigated for this celebrity? For example, We know that Michael Jackson's source for his anesthetic was his own private doctor. Ms. Kilgallen was quite a famous lady at the time and that venue should have been thoroughly investigated.
About that book
Murder One, someone seemed to indicate she wasn't the author (published 1967) and I quote this below. I have not found the Wikipedia link yet, but quoted a man name
Trevoc who says he researched connections.
https://www.amazon.com/Murder-one-Dorothy-Kilgallen/dp/B007T4TJESHere is the quote from
Trevoc in 2012 in the book review:
"
I admit to not having read this book, but as I do research conspiracies such as JFK assassination, 911 and other unsolved events, I found Kilgallen's connection to JFK assassination interesting. So, I researched further to learn more about her costars on Whats My Line? as well as her family and in the process, found that this book called "Murder One" was not at all written by Ms. Kilgallen.
Bennet Cerf, one of her co-panelists on Whats My Line?, was the owner of the book publishing company called Random House, and although he never admitted it, his wife admitted after Cerf's death that Kilgallen was not the author.
Here is the quote from Wikipedia
"Although Bennett Cerf was audiotaped on January 23, 1968 reminiscing about Kilgallen, he said nothing about her death or about the book Murder One that his company Random House had published in 1967 with the late Dorothy Kilgallen listed as the sole author. Years after his death, his widow Phyllis Fraser admitted to Kilgallen biographer Lee Israel that a writer named Allan Ullman actually had written it with Richard Kollmar's(Dorothy's husband) approval."This account could very well be true as Allan Ullman's obituary in 1982 shows him associated with Random House.
https://www.nytimes.com/1982/03/17/obituaries/allan-ullman.html