San Francisco's homicide rate is low compared to other big cities, but the killing of tech founder Bob Lee shows that doesn't tell the whole story

• The tragic killing of tech founder Bob Lee has reignited the debate over crime in San Francisco.
• Residents are calling on authorities to address a growing feeling that the city has become too dangerous. 
• Homicides are indeed on the rise, but the city's violent crime rate is relatively stable.

The tragic killing of Bob Lee — a prolific tech investor and the former CTO of financial technology giant Square — has cast a harsh light on crime in San Francisco.