https://www.siliconvalley.com/2021/09/22/elizabeth-holmes-trial-former-defense-secretary-mattis-applauded-young-elizabeth-but-bloom-came-off/

Retired four-star general and former U.S. Defense Secretary James Mattis wrote admiring messages to Theranos founder Elizabeth Holmes after she told him of her startup’s technology, but he later came to question her promises, jurors heard at Holmes’ criminal fraud trial Wednesday.

“There just came a point where I just didn’t know what to believe about Theranos anymore,” Mattis testified.