I was wondering if there's website with a list of the letters that are undeniably from the Zodiac Killer. Like I know that the Beli letters appear to be a fabrication (I say appear to be because know how brutal this thread is, but in reality anything that included Beli was just a publicity stunt). Whereas letters like the 340 cipher, the original letters, and the letter containing Steins bloody shirt, are hard to refute (in terms of the origin coming from the actual killer). No matter how much I looked, I can't find anywhere a comprehensive list of the irrefutable letters from the killer. I'd just like to know whether or not the Button Letter falls under the Beli Letter category or the stein letter category (pretty irrefutable in terms of the origin of the letter)
