Conversation so far:
what is the crime rate in san francisco
With a crime rate of 64 per one thousand residents, San Francisco has one of the highest crime rates in America compared to all communities of all sizes.
what's the chance of being a victim of crime in san francisco
One's chance of becoming a victim of either violent or property crime here is one in 16.
what is san francisco's crime index
SF has a crime index of 2 out of 100. 100 being the safest.

Question: how many murders were there in the city last year
Self-contained rewrite: how many murders were there in san francisco in 2019