The cell rings twice, and then his old partner in his ear . . . 'I'm at the scene of what appears to be a murder-suicide . . . Come and take a look. Bring your sidekick with you.'Bill Hodges, who now runs a two-person agency called Finders Keepers with partner Holly Gibney, is intrigued by the letter Z written with a marker at the scene of the crime.As similar cases mount up, Hodges is stunned to ...