In other words, the technology that Holmes was hyping up to board members, investors, and even the press, did not work. Tyler decided to take his concerns to his grandfather who, by that time, had grown fairly close to Holmes. She would often be at his home for dinner, and the occasional holiday meal. Unfortunately, George Shultz didn’t believe Tyler and flat out said, “You’re wrong.”

Source: https://www.distractify.com/p/tyler-shultz-theranos-now