Crime writer James Patterson and journalist Vicky Ward have teamed up to write a book on Luigi Mangione, who allegedly killed a UnitedHealthcare CEO last year.

Manhattan prosecutors have responded to claims from Luigi Mangione's defense team that they were "plainly lying" on a subpoena to illegally access their client's medical records.

The defense had accused prosecutors with the Manhattan District Attorney's Office of violating Luigi Mangione's HIPAA rights.