The Sketching Detective and the Bitcoin Murders

Upon arriving at his university office one morning, Jack MacKay finds the body of a former boyfriend of his wife, Fiona, lying on his desk with a bullet hole in his back. The murdered man was Billy Bell, the owner of the Bell Bond Company and a former professional football player. Eventually, Jack and Fiona overcame the polices suspicion that Jack was involved in the murder. They learn that the computer theft of bitcoins is in some way involved in the death. Together with Billys wife, who is nicknamed Hercules because of her great physical strength, they eventually stumble across the unlikely killer.