Bob Lee, the creator of Cash App and a former Square executive, was stabbed to death in San Francisco early Tuesday, according to reports. The San Francisco Police Department said a 43-year-old sustained "apparent stab wounds" and died after being taken to hospital. The perpetrator is still at large.
...
Lee worked on Android's core library development in the early years of the mobile operating system, as TechCrunch notes. He then moved to Square to work on the company's Android app before becoming chief technical officer and creating Cash App. Lee was also a startup investor and helped the World Health Organization with its mobile app after the COVID-19 pandemic took hold.