Thank you. I appreciate your help. Unfortunately it proved to be a dead end. https://www.facebook.com/DCTheRedThread ... 1767451109
I was so certain that Gosho had some type of Japanese folklore thing going on as the guestbook name we all assumed was the bosses could be interpreted in a very specific religious way and that when Gosho was mentioning that the bosses name had appeared somewhere, I was very certain that we were overlooking it as it was not the name of a character or person in Detective Conan, but likely a casual reference to a Japanese folk figure whom the Boss shared a name with. Thus I was certain that it was either connected to Emperor Jimmu who lead all of Japan with the help of the Yatagarasu a three legged crow, or Momotaro which is a story about a boy growing up/getting bigger to defeat a black Demon Lord and his seven henchmen.
Unfortunately, as my foundation just eroded on me 10 minutes ago, it looks like there is no over-arching theme with Japanese folk and myth in Detective Conan. At least, not from my perspective.