J.J. Cagney writes twisty, atmospheric mysteries and thrillers where every clue is a risk and every secret comes at a price. Her award-winning books follow smart, determined protagonists as they face danger, both in the wild landscapes of New Mexico and Yellowstone and in their own lives.
Cagney is best known for the acclaimed Cici Gurule Mysteries. A Pilgrimage to Death was named one of Kirkus Reviews’ 100 Best Books of 2018, won the National Indie Excellence Award, and became a Goodreads Best Mysteries reader favorite. An Artifact of Death was called “an exhilarating entry in a thoroughly enjoyable series” (Kirkus Reviews) and was a BookLife Award quarterfinalist. Her newer books, like Bayou Venom, have also earned her Judge’s Top Pick for both the Claymore and Silver Falchion Awards at Killer Nashville 2025.
Before becoming a full-time storyteller, Cagney worked as a literary agent and as a marketing director for elite athletes. These jobs helped her develop a sharp sense for high-stakes drama and character-driven conflict. She now lives in northern New Mexico with her family, two mischievous dogs, and a small but suspiciously well-organized tank of fish.
Cagney’s next thriller, The Kill Line, is a gripping cat-and-mouse survival story set deep in Yellowstone. It will be released on August 25, 2026, by City Owl Press.