Colorado Parks & Wildlife Research Library

Will Jennings and his family are about to live every family's nightmare, a kidnapping. They don't know it but they are being watched by a psychopathic con man who has never been caught, because his victims never talk to the police

Michael Palmer's latest novel pits a flawed doctor against a ruthless psychopath, who has made murder his art form. Dr. Nick Garrity, a vet suffering from PTSD post traumatic stress disorder spends his days and nights dispensing medical treatment from a mobile clinic to the homeless and disenfranchised in D.C. and Baltimore. In addition, he is constantly on the lookout for his war buddy Umberto Vasquez, who was plucked from the streets by the military...

Jazz Dent, who has been shot and left to die in New York City, his girlfriend, Connie, who is in the clutches of Jazz's serial killer father, Billy, and his best friend, Howie, who is bleeding to death on the floor of Jazz's own home in tiny Lobo's Nod, must all rise above the horrors their lives have become and find a way to come together in pursuit of Billy.

Chief Ty Christie of Willicott, Maryland, witnesses a murder at dawn from the deck of her cottage on Lake Massey. When dragging the lake, not only do the divers find the murder victim, they also discover dozens of bones. Even more shocking is the identification of a unique belt buckle found among the bones. Working together with Chief Christie, Savich and Sherlock soon discover a frightening connection between the bones and an escaped psychopath.

Washington, D.C., police detective Alex Cross becomes caught up in a kidnapping case that may involve Gary Soneji, a teacher at an elite private school who is also a schizophrenic psychopath and serial murderer.

When a hedge fund billionaire hires Stone Barrington to talk some sense into his wayward son, it seems an easy enough job; no one knows the hidden sins and temptations of the ultra-wealthy better than Stone. But as he and his erstwhile protege, Herbie Fisher, probe deeper into the case - and an old one comes back to haunt him - Stone realizes that even he may have underestimated just how far some people will go to cover up their crimes and plan new...

When seventeen-year-old Davy Hamilton tests positive for Homicidal Tendency Syndrome, everyone believes it is only a matter of time before she murders someone.

"The City of Angels has more than its share of psychopaths, and no one recognizes that more acutely than the brilliant psychologist and police consultant Dr. Alex Delaware. Despite that, Constance Sykes, a sophisticated, successful physician, hardly seems like someone Alex needs to fear. Then, at the behest of the court, he becomes embroiled in a bizarre child custody dispute initiated by Connie against her sister and begins to realize that there...

Around the time of her thirteenth birthday, Penny's suburban Philadelphia neighborhood is terrorized by a psychopath and everyone is sure that the young man just out of a juvenile home is responsible.

"In this madcap journey, a bestselling journalist investigates psychopaths and the industry of doctors, scientists, and everyone else who studies them. The Psychopath Test is a fascinating journey through the minds of madness. Jon Ronson's exploration of a potential hoax being played on the world's top neurologists takes him, unexpectedly, into the heart of the madness industry. An influential psychologist who is convinced that many important CEOs...