https://apnews.com/08c6fa74f57774b70d0cad55f5ae96a8 > SAN RAMON, Calif. (AP) — Apple CEO Tim Cook will take the witness stand Friday to defend the company's iPhone app store against charges that it has grown into an illegal monopoly — one far more profitable than his predecessor Steve Jobs envisioned when it opened up 13 years ago. > The technology company is counting on Cook's appearance to put the finishing touches on Apple's defense against an antitrust case brought by Epic Games, maker of the popular video game Fortnite.