In the ongoing trial of Donna Adelson, accused of orchestrating the 2014 murder of her former son-in-law, Florida State University law professor Dan Markel, law enforcement agents have provided detailed testimony about an undercover operation pivotal to the investigation.
Prosecutors allege that Adelson, 75, conspired to have Markel killed amid a contentious custody dispute between her daughter, Wendi Adelson, and Markel. The prosecution contends that Donna Adelson was the driving force behind the murder-for-hire plot, aiming to facilitate her daughter’s relocation to South Florida with her grandchildren. ([apnews.com](https://apnews.com/article/f3c018b0fa71459af46e236db071a9f7?utm_source=openai))
Central to the case is an undercover operation conducted in April 2016. An FBI agent approached Donna Adelson under the guise of being the brother of one of the hitmen involved in Markel’s murder. The agent handed her a flyer featuring Markel’s photo and a handwritten note requesting $5,000, suggesting that the family had been assisting others involved in the crime. Adelson denied any knowledge of the matter during the encounter. ([wtxl.com](https://www.wtxl.com/news/local-news/unraveling-5-year-mystery-of-murdered-fsu-professor-dan-markel?utm_source=openai))
Following this interaction, a recorded conversation between Donna Adelson’s son, Charlie Adelson, and his then-girlfriend, Katherine Magbanua, took place at a Miami restaurant. In the recording, Charlie Adelson discussed the undercover agent’s approach to his mother and deliberated on how to handle the situation, including the possibility of paying the supposed blackmailer. ([miaminewtimes.com](https://www.miaminewtimes.com/news/charlie-adelson-to-stand-trial-for-dan-markel-murder-18092456?utm_source=openai))
During the trial, the prosecution presented this undercover operation as evidence of the Adelson family’s alleged involvement in the conspiracy. The defense, however, argues that there is no direct evidence linking Donna Adelson to the crime and that the state’s case relies heavily on circumstantial evidence and the actions of other individuals. ([wctv.tv](https://www.wctv.tv/2025/08/22/matriarch-or-normal-person-state-defense-describe-two-different-donna-adelsons-trial-begins/?utm_source=openai))
Donna Adelson faces charges of first-degree murder, conspiracy, and solicitation. If convicted, she could receive a life sentence. The trial continues to unfold, with further testimony expected to shed light on the complex web of relationships and events surrounding Markel’s death.