Donna Adelson Trial: FBI Agents and Audio Expert Unravel Coded Conversations

The Trial of Donna Adelson continued with three key witnesses who each added new dimensions to the state’s case against the woman prosecutors say orchestrated the murder-for-hire plot that killed law professor Dan Markel.

First up was FBI Special Agent Louis Bronstein, who walked jurors through the undercover surveillance operation that captured Charlie Adelson and Katherine Magbanua discussing the fallout from the FBI’s infamous “bump.” His testimony gave jurors a behind-the-scenes look at how investigators staged, recorded, and preserved crucial evidence—evidence prosecutors argue shows Donna’s family scrambling to contain a conspiracy.

Next was forensic audio expert James McElveen, who helped decode the recordings at the heart of the prosecution’s case. In a restaurant filled with background noise and distractions, McElveen explained how he enhanced and clarified the conversations so jurors could hear the words prosecutors believe expose the coded language of the Adelson circle—phrases like “gifts,” “cards,” and “cars” that may have carried far more sinister meaning.

Finally, FBI Agent Brian Kendall took the stand to present additional surveillance and investigative details. His testimony tied the pieces together, showing how agents tracked movements, analyzed behavior, and built the narrative of a family under pressure. Kendall’s account brought the investigation out of the abstract and back into the reality of Donna Adelson’s alleged role in holding the scheme together.

Together, Bronstein, McElveen, and Kendall delivered a day of testimony that blended surveillance, science, and strategy. For the jury, it was a layered presentation of how investigators say Donna Adelson operated as the mastermind, pulling strings from behind the scenes while her family carried out the plan.

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