4MK Thriller Series by J.D. Barker

For over five years, the Four Monkey Killer has terrorized the residents of Chicago. When his body is found, the police quickly realize he was on his way to deliver one final message, one which proves he has taken another victim who may still be alive.As the lead investigator on the 4MK task force, Detective Sam Porter knows even in death, the killer is far from finished... moreFor over five years, the Four Monkey Killer has terrorized the residents of Chicago. When his body is found, the police quickly realize he was on his way to deliver one final message, one which proves he has taken another victim who may still be alive.As the lead investigator on the 4MK task force, Detective Sam Porter knows even in death, the killer is far from finished. When he discovers a personal diary in the jacket pocket of the body, Porter finds himself caught up in the mind of a psychopath, unraveling a twisted history in hopes of finding one last girl, all while struggling with personal demons of his own.With only a handful of clues, the elusive killer’s identity remains a mystery. Time is running out and the Four Monkey Killer taunts from beyond the grave in this masterfully written fast-paced thriller. less

Alternate cover art can be found hereIn the thrilling sequel to The Fourth Monkey, a new serial killer stalks the streets of Chicago, while Detective Porter delves deeper into the dark past of the Four Monkey Killer.Detective Porter and the team have been pulled from the hunt for Anson Bishop, the Four Monkey Killer, by the feds. When the body of a young girl is found beneath the frozen waters of Jackson Park Lagoon, she is quickly identified as Ella Reynolds, missing three weeks... moreAlternate cover art can be found hereIn the thrilling sequel to The Fourth Monkey, a new serial killer stalks the streets of Chicago, while Detective Porter delves deeper into the dark past of the Four Monkey Killer.Detective Porter and the team have been pulled from the hunt for Anson Bishop, the Four Monkey Killer, by the feds. When the body of a young girl is found beneath the frozen waters of Jackson Park Lagoon, she is quickly identified as Ella Reynolds, missing three weeks. But how did she get there? The lagoon froze months earlier. More baffling? She’s found wearing the clothes of another girl, missing less than two days.While the detectives of Chicago Metro try to make sense of the quickly developing case, Porter secretly continues his pursuit of 4MK, knowing the best way to find Bishop is to track down his mother. When the captain finds out about Porter’s activities, he’s suspended, leaving his partners Clair and Nash to continue the search for the new killer alone.Obsessed with catching Bishop, Porter follows a single grainy photograph from Chicago to the streets of New Orleans and stumbles into a world darker than he could have possibly imagined, where he quickly realizes that the only place more frightening than the mind of a serial killer is the mind of the mother from which he came. less

In the riveting conclusion of the 4MK trilogy, Barker takes the thriller to an entirely new level. Hear No Evil For Detective Sam Porter, the words “Father, forgive me” conjure memories long forgotten; a past intentionally buried. For Anson Bishop, these three words connect a childhood to the present as he unleashes a truth concealed for decades... moreIn the riveting conclusion of the 4MK trilogy, Barker takes the thriller to an entirely new level. Hear No Evil For Detective Sam Porter, the words “Father, forgive me” conjure memories long forgotten; a past intentionally buried. For Anson Bishop, these three words connect a childhood to the present as he unleashes a truth concealed for decades. See No EvilFound written on cardboard near each body, these words link multiple victims to a single killer—discovered within minutes of each other in both Chicago and South Carolina—clearly connected yet separated by impossible miles.Speak No EvilChicago Metro and the FBI find themselves caught in chaos—a hospital on lockdown, a rogue officer, and corruption at the highest levels. When Anson Bishop, the prime suspect in the notorious 4MK serial murders turns himself in, he reveals a story completely unexpected, one that not only upends the current investigation, but one that will change the lives of all involved. Do No Evil With unrelenting tension and pulse-pounding suspense, the past unravels at breakneck speed as the truth behind the Four Monkey Killer’s motive is finally revealed in this masterfully crafted finale. less