FBI Special Agent Marc Troiano explained how he verified a prosecution-supplied chart summarizing Signal groups, participants, and auto-deletion settings. Cross-examination established the limited scope of his assignment and personal knowledge.
Marc Troiano
Federal Bureau of Investigation special agent assigned to a corporate, securities, and commodities fraud squad.
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FBI Special Agent Marc Troiano testified for the government on Day 14 about his limited review of Signal data from Gary Wang's laptop and Caroline Ellison's extracted phone data. His work concerned Government Exhibit 1083, a chart identifying Signal groups involving Samuel Bankman-Fried, their participants, and recorded auto-deletion settings.
Troiano explained that he matched phone numbers across the devices to reconcile participant labels and used the device records to identify changes in disappearing-message settings. He testified that the chart covered 325 groups from 2020 through 2022, with auto-deletion enabled in 288, and included a record showing Bankman-Fried turning off a one-week setting on November 9, 2022.
Cross-examination established that prosecutors selected the Signal groups and supplied the chart's initial draft. Troiano's assignment was to verify names, dates, and other information and make factual corrections. He said he did not review message content, had no independent knowledge of participant identities beyond the device information, was not a case agent, and had no other involvement in the case.
Objections confined parts of the examination to Troiano's assigned work and the information displayed on the chart. After a sidebar clarified that groups had been removed or redacted for several reasons, the court said a disputed question had created a misleading impression. By agreement, the question and answer were stricken, and the jury was instructed to disregard them.
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