Thank you. I appreciate your help. Unfortunately it proved to be a dead end.
https://www.facebook.com/DCTheRedThread ... 1767451109I 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.