The 43-year-old Lee was perhaps best known for starting Cash App, and as former CTO of Square. He was the chief product officer of San Francisco-based crypto startup MobileCoin.
“Our dear friend and colleague, Bob Lee passed away yesterday at the age of 43, survived by a loving family and collection of close friends and collaborators,” reads a statement from MobileCoin, which described him as “a dynamo, a force of nature … the genuine article.”
“Bob would give you the shirt off his back,” hisfather said in a Facebook post.
“He would never look down on anyone and adhered to a strict no-judgment philosophy.”
San Francisco police responded at around 2:35 a.m. to a report of a stabbing in the city’s relatively safe Rincon Hill neighborhood, where they found Lee still alive.
He was taken to a local hospital where he succumbed to his injuries, CBS News reports.