Police officers responded to reports of the stabbing on Tuesday at around 02:35 local time (10:35 BST).
The San Francisco Standard viewed CCTV footage that shows Mr Lee walking down a deserted alleyway, seemingly looking for help.
Mr Lee is seen stumbling towards a parked car and lifting up his shirt to reveal his wound, but the vehicle drives off before the tech entrepreneur falls to the ground. เว็บบาคาร่าที่ดีที่สุด