The Miami Strangler remains one of Florida’s most haunting unsolved serial murder cases. Between 1964 and 1970, an unidentified killer terrorized Miami, claiming the lives of at least nine women. The moniker “Miami Strangler” emerged from the media and police due to the frequent use of strangulation or similar asphyxiation methods, though not every victim died by strangling alone; some involved smothering, bludgeoning, or other violence. The crimes instilled widespread fear in the city during a period when Miami was growing rapidly as a tourist and retirement destination.
The killer targeted women across a range of ages and backgrounds, with victims discovered in homes, vehicles, bodies of water, or other locations. While the murders shared certain signatures, such as sexual posing of bodies in some instances despite no confirmed sexual assaults in many cases, they varied enough to complicate early linkage. Police connected the cases over time based on patterns, location, and the era’s limited forensic tools.
The killings began in the summer of 1964 and escalated in frequency toward the end of the decade, culminating in a pair of closely spaced murders in October 1970 that prompted authorities to publicly acknowledge a serial predator at work.
The earliest attributed killing was that of sixty-four-year-old Mary E. McGreevy, who was smothered with a pillow in her home on August 17th, 1964.
Then, on March 9th, 1965, thirty-eight-year-old Sylvia Valdez was found dead in her car; she had been killed the previous evening. She had a flat tire, spoke with two men in a parking lot, and was later discovered with a black silk scarf around her neck, skirt pulled over her head, and shot twice behind the right ear with a .22 caliber pistol. Valuables like her diamond ring were left behind, but purse, shoes, and keys were taken.
Forty-four-year-old Bernadita Gonzalez was last seen in a Miami beauty salon in February 1966; her decomposing body was found floating face down in Levitz Lake eight weeks later.
Other victims in the series included women killed in the late 1960s and 1970, such as Sherivon Wooten (August 1969), Louise Danford (May 1970), Ruth Boehner (June 1970), Mattie Ophelia Harris (August 1970), Regina Bonnanno (October 1970), and Patrice Newkirk (October 1970).
Most victims were white (all but one in some listings), and the murders often involved strangulation or asphyxiation. Bodies were sometimes posed suggestively, hinting at a sexual motivation even without overt assault evidence. The span covered roughly six years, with gaps possibly due to the killer’s movements, incarceration, or caution.
Miami police faced significant challenges: no modern DNA testing existed, surveillance was minimal, and the city was experiencing population growth and demographic shifts. Investigators pursued leads, including a focus on a convicted felon and truck driver named Calvin Jones Jr. He had changed Sylvia Valdez’s tire on the night she disappeared and reportedly knew victim Patrice Newkirk. Despite questioning, he was never charged in any of the killings.
Other suspects surfaced over time, but none led to arrests or convictions for the Strangler series. The case drew comparisons to other era serial murderers, but it stands apart as unsolved. Some later confessions by prolific killers (like Samuel Little, who claimed murders in Miami during the 1970s) were examined for links, but they did not match this specific 1964–1970 string.
The Miami Strangler case faded from headlines as newer crimes dominated attention in the 1970s and beyond, including drug-related violence and other serial offenders in Florida. No one has ever been definitively identified or charged as the perpetrator, and the murders remain open cold cases under Miami-area jurisdictions.
Crime Immemorial 