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2 Irell & Manella lawyers should be sanctioned after witness ‘was tricked’ with altered document, special master says

By Debra Cassens Weiss

March 20, 2025, 3:02 pm CDT

An Irell & Manella associate who decided to alter a date on a schematic drawing to prove a point during a deposition should be sanctioned, along with a partner who missed an email revealing the plan, a special master has recommended.

The associate, Benjamin Manzin-Monnin, came up with the idea to show that such dates can be unreliable, according to the March 18 opinion by special master David Folsom. Manzin-Monnin questioned a witness about the document before revealing that it had been altered.

Law360 has the story.

Folsom noted that all lawyers from Irell & Manella attend in-house ethics seminars. Folson said Manzin-Monnin should be required to attend 30 additional hours of ethics courses, along with the partner he notified in an email chain, Jason Sheasby.

Folsom also recommended that Irell & Manella pay fees and costs incurred by the special master and defendant Samsung Electronics in connection with the sanctions motion. And he said Irell & Manella’s client, CogniPower, should lose an hour of trial time in its patent infringement case, filed against Samsung Electronics in federal court for the Eastern District of Texas.

The deposition witness was an executive at a company that, according to Samsung Electronics, had an invention that predates CogniPower’s patents, Law360 explains.

A law firm employee had advised Manzin-Monnin in September 2024 to “get clear directions” from a senior attorney regarding the “mocked up dates on evidence floating around.” Manzin-Monnin replied that he had emailed “Jason,” an apparent reference to Sheasby.

But Sheasby said he “missed” the email from Manzin-Monnin while acknowledging that it was his responsibility to read it.

In a declaration, Sheasby said during the deposition, Manzin-Monnin had shown the expert witness “the correct document, then later the altered version, and then immediately the correct and altered side by side, and then told the witness he altered on[e] of the documents.”

The witness “was tricked” and “obviously confused” by questions about the altered date, Folsom said in the opinion. The fact that Manzin-Monnin did not mark the altered document as an exhibit during the deposition “is immaterial,” Folsom said.

Sheasby said in the declaration Manzin-Monnin has been subject to “professional strictures” as a result of his behavior. In addition, the firm’s general counsel had scheduled a mandatory March 19 ethics seminar for all the firm’s attorneys to address the events and to “ensure that nothing of this nature happens again.”

Neither Manzin-Monnin nor Sheasby immediately responded to the ABA Journal’s email request for comment. Nor did a firm spokesperson immediately reply to a Journal email.

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