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personpersonDanielle R. SassoonDanielle R. SassoonAssistant United States Attorney who represented the government in the federal prosecution of Samuel Bankman-Fried.← All People
ProsecutionUnited States Attorney's Office for the Southern District of New York

Danielle R. Sassoon

Assistant United States Attorney who represented the government in the federal prosecution of Samuel Bankman-Fried.

5,314 lines·60 proceedings

About

As an Assistant United States Attorney, Danielle R. Sassoon developed the prosecution record through examinations of Adam Yedidia, Caroline Ellison, Shamel Medrano, and Can Sun, then cross-examined Samuel Bankman-Fried and gave the rebuttal closing. Her questioning repeatedly joined witness accounts to FTX website materials, internal spreadsheets, messages, corporate records, and public statements, focusing on how customer deposits reached Alameda, how liabilities were recorded, and what senior participants understood about the resulting shortfall.

With Yedidia on Day 2 and Day 3, Sassoon elicited the mechanics of customer fiat deposits, the correction that exposed an approximately $8 billion liability, Bankman-Fried's response to concerns about that debt, and Signal auto-deletion. Her redirect separated Yedidia's earlier knowledge of the liability from his later understanding that customer funds had been spent and revisited the context of Bankman-Fried's warning that FTX was not invulnerable. Through Ellison on Day 5, Day 6, and Day 7, Sassoon used financial records and public statements to trace Alameda's special access to FTX assets, loan repayments with customer money, lender balance sheets, disappearing communications, and crisis messaging. Her redirect addressed defense challenges to Ellison's cooperation and disputed financial presentations.

Sassoon also used Medrano's testimony to present stipulated Twitter records, corporate documents, deletion information, and private November 2022 communications. Her examination of Sun focused on customer-asset protections, Alameda's special account treatment, documented founder loans, and his conclusion that no legal justification supported the missing customer funds, adding legal and documentary context to the witness accounts.

During the Day 14 admissibility hearing, Sassoon tested Bankman-Fried's claim that lawyer-developed policies and agreements authorized auto-deletion, North Dimension payment processing, Alameda's account privileges, customer-fund borrowing, and loans. When his jury testimony continued on Day 16 and Day 17, she used public statements, private messages, account records, spreadsheets, emails, and chats to challenge his asserted separation from Alameda, his account of when he learned the size of the fiat liability, and his explanations of preferential Bahamian withdrawals and FTX's liquidity assurances.

In rebuttal on Day 19, Sassoon argued that the documents and testimony undercut the defense's good-faith account. She pointed to spreadsheets concerning Alameda's special credit and multibillion-dollar liability, argued that later fundraising and public assurances supported knowing participation even under the defense's timing account, and invoked conscious avoidance as an alternative basis for knowledge. She also acknowledged that the government alone bore the burden beyond a reasonable doubt.

Trial Record (60)

FederalFederal Criminal TrialOct 3, 2023 – Nov 2, 2023

Danielle R. Sassoon conducted core prosecution examinations concerning the handling and concealment of FTX customer funds, cross-examined Samuel Bankman-Fried about Alameda's special treatment and his public assurances, and delivered the government's rebuttal closing. Her rebuttal tied witness accounts to contemporaneous spreadsheets, messages, and statements while addressing the defense's good-faith theory and the government's burden of proof.

Day 1

Day 2

Day 3

Day 5

Day 6

Day 7

Day 9

Day 11

Day 12

Day 14

Day 15

Day 16

sidebarHearsay Objection to Defendant's Statement1highlight10lines spoken

Summary

Counsel disputed whether Bankman-Fried's proposed statement to Nishad Singh that neither of them had done anything wrong was admissible under the state-of-mind exception. The court sustained the government's hearsay objection at sidebar and repeated the ruling in open court.

Highlights (1)

Quote“This conversation has every indicia of deliberate or conscious misrepresentation, and this does not pertain to future intent or plans.”— Danielle R. SassoonThe government stated its central reason for arguing that the proposed account did not qualify under the state-of-mind exception.Open in transcript →

Day 17

Day 19

RebuttalGovernment Rebuttal ClosingDanielle R. Sassoon5highlights8lines spoken

Summary

The prosecution's rebuttal challenged the defense's good-faith and credibility arguments, emphasized documentary and witness corroboration, and argued that conscious avoidance or later knowing participation independently supported guilt.

Highlights (5)

Quote“that is not a reasonable business decision. That is fraud.”— Danielle R. SassoonCondenses the prosecution's rebuttal theory that using customer assets after promising to safeguard them was fraud rather than an ordinary business error.Open in transcript →
evidence eventSassoon relied on Government Exhibits 5, 36, and 50 to challenge the defense account of when the defendant learned about Alameda's line of credit and multibillion-dollar liability to FTX.Open in transcript →
otherSassoon argued that liquidity or solvency could not establish good faith because Alameda allegedly received treatment unavailable to ordinary customers and used assets obtained through false representations.Open in transcript →
Quote“This story not only makes no sense, it's inconsistent with the testimony of every witness in this case, and you know that it's a made-up story. You should reject it.”— Danielle R. SassoonDirectly attacks the coherence and credibility of the defense account of the defendant's knowledge.Open in transcript →
Show all 5 highlights
otherSassoon concluded by asking the jury to deliberate without fear, favor, sympathy, or prejudice and to find the defendant guilty.Open in transcript →
sidebarCorrections to the Final Jury Charge4lines spoken

Summary

Prosecutors and defense counsel flagged a typo in the written charge and passages the judge had misread or skipped, including reasonable-doubt language, and the defense raised its earlier charge objections for the record.