The founder of multibillion-dollar tech company Cash App, Bob Lee, was fatally stabbed near downtown San Francisco on Tuesday, his family said.
San Francisco police found a 43-year-old man with stab wounds and treated him before he later died in hospital.
His father, Rick Lee, confirmed his son – who was also the ex-chief technology officer at Square – had been killed.
San Francisco officials have been criticised for their response to a wave of violent crime in recent years.
The California’s San Francisco Police Department said officers responded to reports of a stabbing on Tuesday at around 02:35 local time (10:35 BST).
They found Mr Lee unconscious on the ground with two stab wounds to his chest, according to the San Francisco Chronicle, and started to administer aid before rushing him to San Francisco General Hospital.
Mr Lee’s father posted a message on Facebook on Wednesday confirming the circumstances surrounding his son’s death.
“I just lost my best friend, my son Bob Lee when he lost his life on the street in San Francisco early Tuesday morning,” Rick Lee wrote. “Thank you to those who have reached out in support.”
Tim Oliver Lee, Mr Lee’s brother, also posted on Facebook: “He really was the best of us. I was so fortunate to grow up with him, and I feel like I’ve lost part of myself.”
At his time of death, Mr Lee was the chief product officer of the cryptocurrency company MobileCoin. (BBC)
