Elizabeth Holmes Seeks New Trial by Challenging Key Testimony

Attorneys for convicted Theranos Inc. founder Elizabeth Holmes asked a federal appeals court for a new trial in the yearslong Silicon Valley fraud saga, calling into question the prosecution’s key witness testimony from a former lab director.

Amy Saharia of Williams & Connolly LLP told the three-judge panel for the US Court of Appeals for the Ninth Circuit at a Tuesday hearing that trial testimony from Theranos’ last lab director Kingshuk Das was “infected with error.”

“The government cannot show the errors were harmless,” Saharia said. “The case was close. This was the most powerful evidence on the central issue ...