Bob Lee, the founder of Cash App, was stabbed to death in San Francisco on Tuesday.
- Lee's father announced the tragic news on Facebook
- He said,
"I just lost my best friend, my son Bob Lee when he lost his life on the street in San Francisco early Tuesday morning."
- Lee was also the chief product officer of the cryptocurrency company MobileCoin, where he was an early-stage investor and adviser.
- Lee was 43 years old.