End of Watch (Bill Hodges, Book 03)

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. I'd like you to come and take a look. Bring your sidekick with you, if she's available...'

Retired Detective Bill Hodges now runs a two-person firm called Finders Keepers with his partner Holly Gibney. They met in the wake of the 'Mercedes Massacre' when a queue of people was run down by the diabolical killer Brady Hartsfield.