On July 18, 2014, law enforcement officers found prominent Florida State University law professor Dan Markel shot twice in the head inside his garage in Tallahassee. Markel sat in his car, mortally wounded by a .38-caliber bullet. He died the following day at Tallahassee Memorial Healthcare. What began as a brazen daylight shooting evolved into a decade-long investigation that dismantled a complex murder-for-hire conspiracy involving bitter divorce litigation, familial entanglements, and financial payoffs.
The primary catalyst for the tragedy was a contentious custody battle between Markel and his ex-wife, Wendi Adelson, also a law professor. Following their bitter separation in 2012, Markel successfully opposed Wendi's attempts to relocate their two young sons to South Florida, anchoring her in Tallahassee. This legal victory created a deep-seated grievance within Wendi's family, particularly with her mother, Donna Adelson, and her brother, Charlie Adelson. Over the next two years, the friction transformed from courtroom disputes into a murder-for-hire plot orchestrated through criminal connections in Miami.
The Crime and Immediate Investigation
On the morning of July 18, Markel visited a local gym before returning home to his upscale Tallahassee neighborhood. Unbeknownst to him, a green Toyota Prius tracked his movements. Two men, Sigfredo Garcia and Luis Rivera, carried out the execution. Surveillance footage later captured the Prius circling the neighborhood and trailing Markel back to his residence on Trescott Drive.
When Markel pulled into his garage, Garcia approached the driver's side and fired two shots at close range. Witnesses heard loud pops, and a neighbor spotted the fleeing Prius. Tallahassee Police Department investigators immediately collected ballistic evidence and traffic camera footage, establishing a crucial trail. Investigators tracked the Toyota Prius across North and South Florida, eventually connecting the rental vehicle to Miami-Dade County.
The breakthrough in the physical investigation came from toll booth data, automated license plate readers, and cell tower pings. Police identified Luis Rivera and Sigfredo Garcia as the suspected shooters. Rivera, facing federal racketeering charges, later accepted a plea deal in exchange for his testimony against his co-conspirators. He detailed how they were hired through an intermediary, Katherine Magbanua, who maintained a romantic and financial relationship with Charlie Adelson.
The Intermediary and the Miami Connection
Katherine Magbanua served as the crucial link between the Adelson family and the hitmen. Magbanua shared two children with Sigfredo Garcia and was a close friend and employee of Charlie Adelson at his dental practice in Sunny Isles Beach, Florida. Prosecutors argued that Charlie Adelson enlisted Magbanua to arrange the hit, using Garcia and Rivera to eliminate Markel and free Wendi Adelson to move to South Florida with the children.
Following the murder, financial flows between Charlie Adelson and Katherine Magbanua spiked significantly. Investigators uncovered checks and cash deposits funneled through various accounts, totaling roughly one hundred thousand dollars. Wiretaps deployed years later captured Charlie Adelson discussing the murder in a Miami restaurant with Magbanua, recorded by an FBI undercover agent wearing a wire in April 2022. This conversation provided federal and state prosecutors with the audio evidence needed to secure indictments against Charlie and his mother, Donna Adelson.
Charlie Adelson went to trial in November 2023. Prosecutors presented testimony from Luis Rivera, extensive phone records, financial ledgers, and the infamous "The Grandest Illusion" audio recording. The jury deliberated for less than three hours before convicting Charlie Adelson of first-degree murder, conspiracy, and solicitation of murder. He received a mandatory sentence of life imprisonment without the possibility of parole.
The Prosecution of Donna Adelson
With her son convicted, Donna Adelson faced the legal fallout. Investigators had long suspected Donna of playing a primary role in orchestrating the plot, noting her intense desire to have her grandchildren live closer to Miami and her hostile text messages about Dan Markel. In November 2023, just days after Charlie's conviction, Donna attempted to board a one-way flight to Dubai with a large sum of cash. Law enforcement intercepted her at Miami International Airport and arrested her.
Donna Adelson's trial in Tallahassee brought renewed public attention to the case. Prosecutors detailed how Donna used encrypted messaging apps and financial channels to coordinate the hit with Charlie and Katherine Magbanua. The state argued that Donna drove the motivation behind the family conspiracy, viewing Markel's opposition to the relocation as an intolerable obstacle. In late 2024, a Leon County jury convicted Donna Adelson of first-degree murder, conspiracy, and solicitation of murder. She joined her son behind bars with a life sentence.
Wendi Adelson, who testified under a grant of use immunity during earlier trials, has consistently denied any advance knowledge of the murder plot. State prosecutors and investigators have continued to evaluate her involvement, while public scrutiny and civil actions from the Markel family persist. Wendi legally changed her children's last names to Adelson following the murder and relocated them out of Tallahassee.
Frequently Asked Questions
Why was Dan Markel targeted?
Dan Markel was targeted due to a severe custody dispute between him and his ex-wife, Wendi Adelson. Markel successfully blocked Wendi's legal efforts to move their two sons from Tallahassee to South Florida, which sparked intense anger from Wendi's family, particularly her mother, Donna Adelson, and brother, Charlie Adelson.
Who actually pulled the trigger?
Sigfredo Garcia and Luis Rivera carried out the shooting. Rivera pleaded second-degree murder in exchange for a sentence reduction and testified against Garcia and Magbanua. Garcia was convicted of first-degree murder at trial and sentenced to life in prison.
How did law enforcement crack the case?
Investigators used automated license plate readers, traffic cameras, and cell phone records to trace the green Toyota Prius rented by the hitmen from Miami to Tallahassee and back. Years later, an FBI wiretap and an undercover sting operation in a Miami restaurant captured Charlie Adelson making incriminating statements that sealed the case.
What happened to Wendi Adelson?
Wendi Adelson was granted use immunity during the trials of the co-conspirators. She has maintained that she had no prior knowledge of the murder plot. Prosecutors have never formally charged her, though the investigation into the broader family network remains a point of intense public and legal discussion.
Where can I read more about the official court records?
You can review documents and case dockets through the Leon County Clerk of Courts and read investigative updates published by the Tallahassee Democrat.
