Three years ago, Bob Lee, a tech executive best known for creating Cash App, was found stabbed in the streets of San Francisco. His killing set off a wave of online fury. Rumors and misinformation ran rampant. Several tech industry leaders weighed in, including David Sacks, who “bet dollars to dimes” that Lee was stabbed by “a psychotic homeless person,” and Elon Musk, who disparaged the district attorney. When Lee’s killer was arrested, it became clear that the truth of what happened could not be further from the initial speculation.