Assertion: jack's book | /r/HasProperty | published
Facets:
Source sentences:
text: More than 100 books about the case have been published, many of which offer conjectures as to the true identity of the murderer and the circumstances surrounding the crimes—including that the murders were part of an occult or Masonic plot and that the police were covering up for highly placed culprits, perhaps even members of the royal family.
text: Jack has four published comic books, spin-off comic books, and a growing fan base.