A tech mogul who helped create Android and Cash app, has been stabbed to death in San Francisco. Bob Lee, 43, was attacked in the city’s plush downtown residential Rincon Hill neighborhood at 2.35am on Tuesday. Police were called to the 300 block of Main Street near the entrance of a high-rise close to the waterfront and found the dad-of-two suffering from multiple stab wounds. Friends told the San Francisco Standard that he had been visiting the area for business and decided to stay an extra day when he was stabbed. Twitter and Tesla CEO Elon Musk also commented on the horrific incident, asking the San Francisco DA what she is doing to ‘incarcerate repeated violent offenders’. He said: ‘Very sorry to hear that. Many people I know have been severely assaulted. Violent crime in SF is horrific and even if attackers are caught, they are often released immediately.

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