Elizabeth Holmes defended herself against charges of deceiving investors and patients about her now-defunct blood-testing company. If convicted, Holmes faces up to 20 years in prison.
Once a star of Silicon Valley, biotech company founder Elizabeth Holmes is facing several counts of fraud. Prosecutors have accused her of "lying and cheating" in opening arguments.
With a new type of simple blood test, Elizabeth Holmes wanted to revolutionize the health care industry. Her company Theranos was a Wall Street darling until it was exposed as a fraud. Now she is on trial in California.