jonah owen lam, a reporter with our media partner the san francisco standard, has seen the video. >> the video i viewed shows bob lee or someone looking like bob lee walking up main from the bay bridge. toward harrison. and then he seems to lift his shirt up as he approaches a car that is stopped on the corner. the car then drives away. he falls to the ground. he gets up again and walks back on main the way he came on the others of the street and falls down. the blood that i saw at the scene also tracks with that video. reporter: lee minutes after emergency crews were dispatched but he died at the scene. a kitchen knife with a four inch blade was found in a caltrans parking lot across the street. >> i'm just overwhelmed to hear today's news. it is incredibly tragic. >> george sybil was his former next-door neighbor in mission bay. >> we were next-door neighbors for three years and got closer. we spent a lot of time together. >> he knew lee as his time as squares chief technology officer and when he founded cash app. >> he touched so many lives and helped with so many startups. report

joining me now is jonah owen lam, senior reporter at the san francisco standard and his publication gainedxclusive access to surveillance footage and the 911 records. jonah thanks so much for being here, so you were able to see this surveillance video. i was indeed yes. and what did you see on it? well, what you see in the video. is your first see him coming up main street, which is where the incident occurred. we don't know what's happening there. no problem. we can still see you. we have him on main street coming up with the incident occurred. his holding his side. he's talking on his phone, perhaps then he crosses and he approaches a car has its hazards on it seems like he's trying to get help from the car. he reaches his hands to show that he injured the car drives away. then he falls to the ground, and then he crosses the street and falls again. and that's what the video that i saw shows it's now been in additional video, the daily mail published that we have seen as well which shows him sometime later. we believe it's hard to know going to the door of the building, falling down, tryi

joining me now is jonah owen lam, senior reporter at the san francisco standard and his publication gainedxclusive access to surveillance footage and the 911 records. jonah thanks so much for being here, so you were able to see this surveillance video. i was indeed yes. and what did you see on it? well, what you see in the video. is your first see him coming up main street, which is where the incident occurred. we don't know what's happening there. no problem. we can still see you. we have him on main street coming up where the incident occurred. he's holding his side. he's talking on his phone, perhaps then he crosses and he approaches a car has its hazards on it seems like he's trying to get help from the car . he reaches his hands to show that he injured the car drives away. then he falls to the ground, and then he crosses the street and falls again. and that's what the video that i saw shows it's now been in additional video, the daily mail published that we have seen as well which shows him sometime later. we believe it's hard to know going to the door of the building, falling down, t