Ames Man Pleads Guilty to Sex Trafficking Fourteen Victims

Des Moines – IA An Ames man pleaded guilty yesterday to fifteen counts of sex trafficking by fraud and coercion.

Pursuant to a plea agreement, Carl Dale Markley, a former licensed nurse practitioner and Ames business owner, admitted to using fraud and coercion to cause fourteen victims to engage in commercial sex acts. From 2004 to 2023, Markley lied to dozens of young men to convince them to allow Markley to perform sex acts on them and observe the young men engage in sex acts. Markley’s lies included telling the young men he needed to perform sex acts on them or observe them engaging in sex acts in order to obtain medical or massage certifications, complete classwork, conduct third-party research, and for product development. Markley paid the young men for the sex acts, falsely claiming he had received grants or funding from a third party.

According to the plea agreement, Markley deceived dozens of young men by fabricating consent forms and contracts requiring victims to participate in a certain number and type of paid sex acts, acting as if he was recording data or information during so-called “research sessions”, and falsely claiming to be submitting data to legitimate research companies or institutions. Markley lied to dozens of young men that he was working with, and at the direction of, these research companies and institutions. Markley appealed to the benevolence of the young men, telling them that the research was helping others.

Pursuant to the plea agreement, Markley sometimes used hidden cameras to capture videos and images depicting young men or minor male children naked.

Sentencing is scheduled for March 24, 2025, before Chief U.S. District Court Judge Stephanie M. Rose. For each of the 15 sex trafficking counts, Markley faces a fifteen-year mandatory minimum term of imprisonment and a maximum term of life imprisonment.

The Ames Police Department, Federal Bureau of Investigation, and the Iowa Department of Public Safety’s Division of Criminal Investigation investigated the case, and the United States Attorney’s Office for the Southern District of Iowa is prosecuting the case.

Human trafficking is a crime involving the exploitation of youth under the age of 18 for commercial sex; the exploitation of adults for commercial sex through the use of force, fraud, or coercion; and the exploitation of any individual for compelled labor. Human trafficking does not require the transportation of individuals across state lines, or that someone is physically restrained. Signs that a person is being trafficked can include working excessively long hours, unexplained gifts, physical injury, substance abuse issues, running away from home, isolation from others, or having a person in their life controlling them or monitoring them closely. Victims particularly susceptible to being trafficked include those with criminal histories, a history of physical or sexual abuse, uncertain legal status, and dependency on controlled substances.

Anyone who suspects human trafficking is occurring, be it a minor engaging in paid sex acts, or anyone being coerced into prostitution or labor, is urged to call the National Human Trafficking Hotline at 1-888-373-7888.