Port St. Lucie Police Department

PORT ST. LUCIE, Fla. — An undercover investigation by the Port St. Lucie Police Department’s Internet Crimes Against Children (PSLPD ICAC) Unit has led to the arrest of a Michigan doctor accused of soliciting a parent to allow sexual activity with her 5-year-old daughter.

Detectives said the investigation began in June 2025, when Dr. William J. Murdoch allegedly began chatting online with an undercover PSLPD detective posing as a mother. Investigators said Murdoch expressed interest in forming a relationship with the "mother" to gain access to her child and made explicit requests about sexually abusing the girl.

Police described the messages as “stomach churning,” detailing plans to groom the child and turn the situation sexual. Forensic analysis of Murd

See Full Page