Well that's quite the plot twist

"The alleged killer also works in tech and is a man Lee purportedly knew. We are told that police today were dispatched to Emeryville with a warrant to arrest a man named Nima Momeni. In the wee hours of April 4, they were purportedly driving together through downtown San Francisco in a car registered to the suspect.

Some manner of confrontation allegedly commenced while both men were in the vehicle, and potentially continued after Lee exited the car. Police allege that Momeni stabbed Lee multiple times with a knife that was recovered not far from the spot on the 300 block of Main Street to which officers initially responded. "