BARNSTABLE, Mass. (AP) – A Cape Cod author who’s writing a book about the murder of fashion writer Christa Worthington has pleaded not guilty to firearms charges.

Peter Manso was released on personal recognizance at his arraignment Wednesday in Barnstable Superior Court on charges including owning a large capacity firearm without a license and three other felony gun charges.

The 67-year-old Manso’s book is expected to suggest race played a role in Christopher McCowen’s conviction for Worthington’s 2002 murder. It’s also expected to be harshly critical of investigators in the case.

He has said that’s the real reason he was indicted.

He says his guns weren’t registered because he was never notified about changes in state gun laws that invalidated his existing permits.

Only subscribers are eligible to post comments. Please subscribe or to participate in the conversation. Here’s why.

Use the form below to reset your password. When you've submitted your account email, we will send an email with a reset code.