Mark Mynheir was born and raised on the east coast of Central Florida.  Like most boys growing up, Mark enjoyed sports, mainly football and martial arts.  In 1983, he enlisted in the United States Marine Corps and went through basic training at Parris Island, South Carolina.  After serving four years in the Marines, Mark changed gears and pursued a career in law enforcement with the Palm Bay Police Department (Florida).

During his career as a police officer, Mark has worked as a narcotics agent, a SWAT team member, and a homicide detective.  As a writer, Mark has begun a Christian orientated series of crime fiction books called the Truth Chaser Series.

His first book, Rolling Thunder is described as, “Law Enforcement Agents Can Do It All. But Forgive? John Russell is the Florida Department of Law Enforcement agent assigned to the missing Dylan Jacobs' case. But while he's tracking down clues in his professional life, a murderer is hot on his trail - his own flesh and blood. John's father relentlessly seeks something John refuses to offer: forgiveness. Forced to face the source of his paralyzing fear of thunder and his stolen childhood, can John find the missing boy without his personal life completely unraveling?”

His second book, From the Belly of the Dragon carries the description: “Caught in a Cult People associated with him have been killed, but Dr. Walter Simmons is a successful man. His books and tapes incorporate psychological principles with New Age, feel-good spiritualism and are a hit on college campuses. But when his top students join him for an intensive "training" program, they are actually joining a dangerous cult. Florida Department of Law Enforcement Agent Tim Porter's daughter, Ruby, is lured in like the rest, the heights of a dream plummeting her to the depths of a living nightmare. Tim and his ex-wife are driven to their knees for their daughter. But what about Ruby? To what lengths can they go to rescue her from Dr. Simmons's clutches? Complicating matters is an FBI investigation, a corrupt chief of police, and a mounting spiritual battle. How much time do they really have?”

According to the book description of the Void, “Florida Department of Law Enforcement Agent Robbie Sanchez devotes her life to crime prevention, and it shows: She has no personal life and doesn’t know the meaning of a day off. After all, someone has to be around to clean up the mess crime leaves behind.

So when Officer Brad Worthington is brutally murdered, Agent Sanchez is called to the scene along with Brad’s best friend, Detective Eric Casey. The two turn to Lifetex, the genetics lab near the scene, hoping their elaborate security system might have captured the crime outside.

But what’s going on inside the lab is far worse: a renegade scientist is cloning humans! As Robbie and Eric pursue clues–and a growing attraction–they are caught in a deadly battle as the clones begin to act on their own volition…but this battle threatens to claim more than human life; the clones are vying for human souls.”

Ray reluctantly pulls the threads of this supposedly dead-end case only to unravel a murder investigation so deep that it threatens to turn the Orlando political landscape upside down and transform old friends into new enemies. As Ray chases down leads and interrogates suspects, someone is watching his every move, someone determined to keep him from ever finding out the truth–at any cost.”