Prison Phone Call Bonus Clips: Donna Adelson Murder Trial | 20/20: The After Show

Key Concepts

• Murder for Hire: The central crime involving a plot to kill Dan Markell.
• Circumstantial Evidence: The type of evidence used to convict Donna Adelson, lacking direct proof of her involvement.
• Actuality: Undercover investigations, recorded phone calls, trial footage, and emails used as evidence.
• Code Words: Communication method used by the Adelson family to conceal their intentions ("TV" for the hit, "real estate").
• Extradition: The legal process of transferring an accused person from one jurisdiction to another; Donna Adelson attempted to flee to Vietnam, a country without an extradition treaty with the US.
• Victim Impact Statements: Statements made by the victim’s family during sentencing, detailing the emotional and psychological harm caused by the crime.
• Custody Battle: The contentious legal dispute between Dan and Wendy Markell that served as a potential motive for the murder.

The Adelson Family and the Murder of Dan Markell

This discussion centers on the case of Dan Markell, a Florida State University law professor murdered in 2014, and the subsequent investigation revealing a conspiracy orchestrated by his mother-in-law, Donna Adelson, and her son, Charlie Adelson. The Adelsons, a wealthy and influential family in South Florida, appeared to have a perfect life, but concealed a dark side culminating in a murder-for-hire plot.

Dan Markell’s Life and Marriage

Dan Markell married Wendy Adelson, daughter of Donna and Harvey Adelson. Donna Adelson actively managed her family’s lives, even participating in finding Wendy a suitable husband on JDate, a Jewish dating website. Dan and Wendy married in 2007 and moved to Tallahassee, Florida, where Dan secured a position as a law professor at FSU and Wendy worked as an attorney.

The Divorce and Custody Dispute

After seven years of marriage, Wendy unexpectedly filed for divorce, blindsiding Dan. This initiated a bitter custody battle over their two children. Wendy desired to move back to Miami to be closer to her family, while Dan insisted on remaining in Tallahassee. This disagreement became a non-negotiable point for both parties, creating a highly contentious environment.

The Murder and Initial Investigation (2014-2016)

On July 18, 2014, Dan Markell was shot and killed in his car. The initial investigation yielded limited leads. However, after nearly two years, police identified a silver Prius linked to the crime through surveillance footage and a SunPass toll record, tracing it back to Miami. This led to the arrests of Sigfredo Garcia and Luis Rivera, who were connected to Katie McBanawa, Charlie Adelson’s girlfriend.

Unraveling the Conspiracy (2016-2022)

Garcia and Rivera were arrested, with one taking a plea deal. The investigation revealed a complex web of connections. Charlie Adelson was implicated as the mastermind, having solicited the hitmen through Garcia and Rivera. Crucially, the investigation uncovered the Adelson family’s use of code words to discuss the plot – “TV” representing the hit and “real estate” serving as another coded term.

Donna Adelson’s Involvement and Arrest (2022-2024)

The investigation expanded to include Donna Adelson, with evidence suggesting her significant role in orchestrating the murder. Key evidence included checks written to Garcia and Rivera, and, most significantly, recorded phone calls between Donna and Charlie after Charlie’s conviction. In these calls, Donna discussed fleeing the country, specifically to Vietnam, which has no extradition treaty with the United States. She also referenced the coded language ("TV") and discussed important family documents. She was arrested at Miami International Airport while attempting to board a one-way flight to Vietnam.

The Trial and Conviction (2024)

Donna Adelson’s trial focused on circumstantial evidence. While no direct evidence linked her to the murder, the prosecution presented a compelling case based on the phone calls, financial transactions, and the family’s coded communication. A juror revealed the jury reached a unanimous guilty verdict after a secret ballot process to ensure everyone felt comfortable with their decision.

Victim Impact and Aftermath

Following the conviction, Dan Markell’s father, Phil Markell, delivered a powerful victim impact statement, directly questioning Donna Adelson about whether the murder was "worth it." The family expressed ongoing grief and limited contact with Dan and Wendy’s children. The case highlights the devastating consequences of the crime and the lasting impact on the lives of those involved.

Technical Terms & Concepts

• SunPass: A prepaid electronic toll collection system used in Florida. Its records were crucial in tracing the suspect vehicle.
• Extradition Treaty: An agreement between countries allowing for the transfer of accused individuals for prosecution.
• Undercover Investigation: A law enforcement technique involving agents posing as ordinary citizens to gather evidence.
• Victim Impact Statement: A statement presented to the court during sentencing, detailing the emotional, physical, and financial harm suffered by the victim’s family.

Logical Connections

The narrative follows a chronological progression, starting with Dan Markell’s life and marriage, then detailing the escalating conflict leading to the murder, the initial investigation, the unraveling of the conspiracy, and finally, the trials and convictions. The discovery of the Prius served as a pivotal point, connecting the crime to the Adelson family. The recorded phone calls between Donna and Charlie provided the crucial evidence needed to implicate Donna in the plot.

Data & Statistics

• 2014: Year of Dan Markell’s murder.
• 35 hours: Length of recorded phone calls between Charlie and Donna Adelson in the days following Charlie’s conviction.
• No Extradition Treaty: Vietnam does not have an extradition treaty with the United States, making it a desired escape destination for Donna Adelson.

Synthesis/Conclusion

The case of Dan Markell’s murder demonstrates the lengths to which a powerful family would go to achieve their desired outcome. The Adelsons’ wealth and status initially shielded them from scrutiny, but meticulous police work, coupled with the family’s own careless communication, ultimately led to their downfall. The case underscores the importance of circumstantial evidence in building a strong prosecution and the devastating consequences of a murder-for-hire plot on all involved, particularly the children left without a father and facing a fractured relationship with their grandmother. The story serves as a cautionary tale about the corrosive effects of power, greed, and the pursuit of control.