The Heart Killers Libro

Rhys Writes Romance

Killer Heart: A M/M Enemies-to-lovers Urban Fantasy Romance (Cursed Hearts Book 1) (English Edition)

Exposit Books

The Lonely Hearts Killers: The Bloody Passions of Martha Beck and Raymond Fernandez (English Edition)

Independently published

The Lonely Heart Killers: The Stories And Lives Of The Serial Killers

The Lonely Heart Killers: The Stories And Lives Of The Serial Killers (English Edition)

Spoon River Poetry Pr

The Lonely Hearts Killers                        

Bookouture

Black Heart: A totally gripping serial killer thriller: Volume 1

Independently published

The Way to a Killers Heart                      

Seven Dials

Hearts of Darkness: Serial Killers, the Behavioral Science Unit, and My Life as a Woman in the FBI

Jaci Burton, Inc

The Heart of a Killer: 1                        

Independently published

Infamous Serial Killers: The Tragic Story Of The Lonely Heart Killers