Cash App founder Bob Lee killed in San Francisco stabbing attack.

Bob Lee, founder of Cash App and executive at MobileCoin, has died after a "horrific" act of violence in San Francisco. Police responded to a report of a stabbing and found Lee suffering from stab wounds. He was transported to a nearby hospital with life-threatening injuries and ultimately died from the injuries. The incident is being investigated by the San Francisco Police Department Homicide Detail. Lee is survived by his wife and two children.