John Sandford: Rules of Prey (USA 2019)

From the Publisher:
#1 New York Times bestselling author John Sandford's "haunting, unforgettable, ice-blooded thriller"* that introduced Lucas Davenport...

The killer was mad but brilliant.

He left notes with every woman he killed. Rules of murder: Never have a motive. Never follow a discernible pattern. Never carry a weapon after it has been used...
So many rules to his sick, violent games of death.

But Lucas Davenport, the cop who's out to get him, isn't playing by the rules.

John Sandford: Rules of Prey. A Lucas Davenport Novel. Putnam's, ISBN: 9780525542513 (June, 2019), 432 p., $9.99.

John Sandford: Rules of Prey (UK 2018)

From the Publisher:
#1 New York Times bestselling author John Sandford's 'haunting, unforgettable, ice-blooded thriller'* - first in the Lucas Davenport series!

The killer was mad but brilliant.

He left notes with every woman he killed. Rules of murder: Never have a motive. Never follow a discernible pattern. Never carry a weapon after it has been used...
So many rules to his sick, violent games of death.

But Lucas Davenport, the cop who's out to get him, isn't playing by the rules.

John Sandford: Rules of Prey. The classic thriller that started it all. Simon & Schuster, ISBN: 9781471179037 (November, 2018), 448 p., £8.99, eBook £0.99.

John Sandford: Rules of Prey (USA 2005)

From the Publisher:
The haunting, unforgettable, ice-blooded thriller that introduced Lucas Davenport is so chilling that you're almost afraid to turn the pages and so mesmerizing you cannot stop.

John Sandford: Rules of Prey. With a New Introduction by John Sandford. Berkley Publishing Group, ISBN: 0425205819 (August, 2005), 368 p., $7.99.