New surveillance footage shows the moments after tech executive Bob Lee was stabbed in San Francisco early Tuesday morning.
Lee, the 43-year-old founder of Cash App, later died. As of Friday morning, no arrests had been made in the case.
In the surveillance video obtained by DailyMail.com, Lee is seen collapsing after being stabbed. He's able to get up and try to flag down a car for help, but the driver did not stop and Lee's attempts to ring a doorbell and call for help didn't work either.
A person who works near the crime scene said police recovered a knife nearby.
While police aren't revealing much information publicly, at a community meeting Thursday night, Chief Bill Scott said investigators do have leads.
"The bottom line is we do have some good things to follow up on this case and they are working tirelessly," he said.
The ongoing search for anyone connected to the fatal stabbing of Lee, also comes as San Francisco police are piecing together details, in another high-profile attack in the city.
According to several friends and family, former city fire commissioner Don Carmignani was attacked Wednesday outside his parents' home in the Marina District.
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"He was beat with a metal pipe by a homeless person who wouldn't leave his parents' home,” said Supervisor Catherine Stefani.
She said Carmignani suffered serious head injuries and is now slowly recovering in a local hospital.
Police arrested 24-year-old Garret Doty, He's in jail on felony charges including assault with a deadly weapon.
Crime in the city has become a hot topic. On Friday, during a press event in Fisherman's Wharf, former House Speaker Nancy Pelosi offered her condolences to Bob Lee's family.
"On this Good Friday, we mourn with his family, so sad on the season of Passover and Easter that a family suffers that tragedy,” she said.
Pelosi's husband was violently attacked in their pacific heights home just five months ago.
David Depape is facing state and federal charges in that incident.
San Francisco police are yet to make an arrest in the fatal attack on Bob Lee.
