The case of Chadwick Scott Willacy began on September 5, 1990, in the quiet community of Palm Bay, Florida. What started as a routine workday for 56-year-old Marlys Sather quickly turned into one of the state’s most disturbing homicide investigations. Sather returned home during her lunch break and unexpectedly encountered an intruder inside her residence. Investigators later identified that intruder as her next-door neighbor, Chadwick Scott Willacy.
According to court records, Sather walked in on Willacy while he was burglarizing her home. Detectives determined that the encounter escalated into a violent attack. Evidence presented during the investigation showed that Sather suffered severe blunt-force injuries to her head before being restrained with wire and tape. Investigators also concluded that attempts were made to strangle her with a telephone cord during the assault.
Crime scene investigators spent days processing the residence, collecting physical evidence and reconstructing the sequence of events. Prosecutors later argued that after the attack, Willacy poured gasoline on Sather and set her on fire before fleeing the scene. Medical examiners reached a crucial conclusion during the autopsy: Sather died from smoke inhalation, indicating she was still alive when the fire was started.
The investigation revealed additional evidence linking the suspect to the crime. Authorities said Willacy stole Sather’s vehicle, personal belongings, and used her ATM card after the murder. Detectives followed financial records, witness statements, and forensic findings to build a case that prosecutors described as overwhelming. The evidence ultimately led to Willacy’s arrest and prosecution.
In 1991, a jury convicted Willacy of first-degree murder, burglary, robbery, and arson. He was sentenced to death, although legal challenges later resulted in a new sentencing hearing. In 1995, a second jury again recommended the death penalty, and the sentence was reinstated. Over the following decades, the case moved through state and federal courts as defense attorneys pursued multiple appeals.
Throughout those years, Willacy maintained his innocence. His legal team challenged various aspects of the conviction and sentencing process, but courts repeatedly upheld the verdict. The Florida Supreme Court and later the U.S. Supreme Court declined final efforts to stop the execution, bringing the decades-long legal battle to a close.
On April 21, 2026, Chadwick Scott Willacy was executed by lethal injection at Florida State Prison. More than 35 years after the murder of Marlys Sather, the case reached its final chapter. For investigators, it remains a notable example of a homicide case built through forensic evidence, financial records, and crime scene reconstruction. For the victim’s family, it marked the end of a pursuit of justice that had lasted more than three decades.
