Complex sentence: John and Patsy Ramsey were also sued in two separate defamation lawsuits arising from the publication of their book, "The Death of Innocence", brought by two individuals named in the book as having been investigated by Boulder police as suspects in JonBenét's murder.
Split into simpler sentences: John and Patsy Ramsey were sued in two separate defamation lawsuits arising from the publication of their book, "The Death of Innocence". These suits were brought by two persons named in the book as having been investigated by Boulder police as suspects in JonBenét's murder.