Ex-Theranos product manager denies trying to deceive people with demos of its blood tests

A former product manager at Theranos Inc. on Wednesday denied trying to deceive people when demonstrating its blood testing technology. In previous testimony in the fraud trial of Theranos founder Elizabeth Holmes, Daniel Edlin had said the company used an app to hide errors on its devices during demonstrations and that in at least one case, it changed the benchmarks it used to make two conflicting results appear normal. But when asked by one of Holmes' lawyers Wednesday at the U.S. District…