Three years ago, Bob Lee, a tech executive famous for creating Cash App, was found stabbed in San Francisco. His killing set off a wave of online fury. Reporter Shawn Wen takes us back to the turbulent days before his killer was arrested, when misinformation and rumors ran rampant. Several tech industry leaders decried violent crime in San Francisco, including David Sacks, who “bet dollars to dimes” that Lee was stabbed by “a psychotic homeless person,” and Elon Musk, who called the city “horrific.”