Port St. Lucie Police Department‘s Internet Crimes Against Children (ICAC) Unit has led a major investigation resulting in the arrest of a Michigan family practice doctor in a child solicitation case. The case, which centers on the use of digital communication to solicit illegal activity, highlights the ongoing efforts of law enforcement in Port St. Lucie to combat online crimes targeting children.
ICAC Unit Uncovers Online Solicitation in Port St. Lucie Case
On June 16, 2025, a detective from the Port St. Lucie Police Department (PSLPD) ICAC Unit, working undercover, began investigating Dr. William J. Murdoch, age 45, after he initiated contact with someone he believed to be a mother in order to solicit her 5-year-old daughter for a sexual relationship. The investigation was conducted in coordination with Homeland Security Investigations offices in both Ft. Pierce and Detroit.
According to police, Dr. Murdoch’s initial approach was to seek a platonic relationship with the mother, with the intent to groom her child and escalate the relationship to a sexual nature. The undercover operation was carefully managed to protect investigative details and ensure the safety of all parties involved.
Digital Evidence and Search Warrants Lead to Identification
The investigation progressed as detectives developed probable cause to obtain subpoenas and search warrants for multiple digital devices. These searches provided evidence that linked Dr. Murdoch directly to the alleged crimes. The digital communications included explicit and disturbing messages, not only regarding the 5-year-old child but also referencing topics such as conception, abortion, and the intentional use of substances to cause birth defects.
Law enforcement officials emphasized the seriousness of the content discovered, describing it as both disturbing and criminal in nature. The evidence collected was instrumental in securing a warrant for Dr. Murdoch’s arrest.
Arrest and Extradition of Michigan Family Practice Doctor
On August 28, 2025, a warrant was issued for Obscene Communication – Use of a Computer to Solicit a Parent or Guardian to Consent to the Participation of Sexual Conduct Involving a Child. Dr. Murdoch was apprehended by the United States Marshals Service Fugitive Task Force at ProMedica Monroe Regional Hospital in Monroe, Michigan on September 2, 2025.
He is currently awaiting extradition to Florida to face charges related to the investigation led by the Port St. Lucie Police Department. The case remains active, and additional details may be released as the legal process continues. In a separate incident, authorities recently arrested a Port St. Lucie man accused of soliciting a sexual relationship with a child, underscoring the ongoing threat of online predators in the community.
Collaboration Between Agencies in Child Protection Cases
This case demonstrates the importance of interagency cooperation in addressing internet crimes against children. The partnership between PSLPD ICAC, Homeland Security Investigations, and the U.S. Marshals was critical in identifying, locating, and arresting the suspect across state lines. In addition to child exploitation investigations, local law enforcement agencies are also involved in other high-profile cases, such as the St. Lucie County Sheriff’s Office’s ongoing search for the Don Julio Bandit.
Authorities encourage the public to remain vigilant and to report any suspicious online activity involving children to local law enforcement or national tip lines. The Port St. Lucie Police Department continues to prioritize the safety and well-being of children throughout the community.
Frequently Asked Questions About PSLPD ICAC Investigation
What is the PSLPD ICAC Unit?
The PSLPD ICAC Unit is the Port St. Lucie Police Department’s Internet Crimes Against Children division. It investigates online crimes involving the exploitation or solicitation of minors.
How does the ICAC Unit identify suspects in online child exploitation cases?
The ICAC Unit uses undercover operations, digital forensics, and collaboration with other agencies to track and identify suspects who use the internet to commit crimes against children.
Are there similar investigations ongoing in Port St. Lucie?
Yes, the PSLPD ICAC Unit regularly conducts investigations into online crimes against children. They work with state and federal partners to address these cases in Port St. Lucie and beyond.
Can you report suspected internet crimes against children in PSL?
Yes, anyone can report suspected internet crimes against children to the Port St. Lucie Police Department or through national hotlines such as the CyberTipline.
Where are suspects held after being arrested in these cases?
Suspects are typically held in the jurisdiction where they are arrested until they can be extradited to the state where the crime occurred, as in this case with Dr. Murdoch awaiting extradition to Florida.
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