Bob Lee had been working as the chife product officer of the cryptocurrency co-founded MobileCoin.

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He was previously chief technology officer od Square,a financial technology start-up co-founded by the former Twitter chief Jack Dorsey. 

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He was  founded the mobile payment company Cash App ,Tuesday after he was stabbed near downtown San Francisco, according to his family and police. 

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San Francisco Police said officers responded to a report of a stabbing around 2:35 a.m Tuesday. 

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The officers found Bob Lee,43 with apparent stab wounds.He was taken to a hospital and died of his injuries,police said. . 

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Police Chife Bill Scott said in a statement Wednesday night that the investigation is in its early stages and he called it a horrific crime. 

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The incident is under investigation by the police department homicide detail,the department said.

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The World Organization confirmed to NBC News on Wednesday that Lee offered his ....

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support and expertise” during the pandemic, saying in a statement that Bob built a large part of the saying for the WHO Covid-19 App. 

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Lee also was an investor in Elon Musk’s SpaceX venture,as well as other tech firms,such as the social audio app Clubhouse,according to his LinkedIn profile. 

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Richard Lee(Bob Lee father) he said in a Facebook post about his son Bob Lee worked harder than anyone and was the smartest person.