SAN JOSE, Calif.—A lawyer for Theranos Inc. founder Elizabeth Holmes tried to undercut a key prosecution witness’s testimony Tuesday, as new clues emerged about her defense strategy of shifting blame to her former top deputy and ex-boyfriend.
Former Theranos lab director Adam Rosendorff testified Tuesday in Ms. Holmes’s criminal-fraud trial that every time the company fielded a physician complaint, every time quality control failed and every time test results fell out of appropriate ranges, “it raised serious and grave concerns for me about the accuracy of the testing process.” The concerns eventually led him to quit, he said.
