Elizabeth Holmes denies misleading Theranos investors as prosecution wraps

Founder of blood testing company says she did not think she said her devices were actively being used on military helicopters

Elizabeth Holmes continued testimony in her own defense on Tuesday, in her sixth day on the stand in a widely followed trial centering on her now-defunct blood testing company, Theranos.

Holmes faces up to 20 years in prison over charges that she defrauded investors and patients, lying about the capabilities of the firm's core blood-testing technology. She has pleaded not guilty.