The Police Shot A Man In San Francisco

The story I read about this said that the man was hanging around in the subway, drunk, who threw his liquor bottle at the cops who were called to reign him in and then pulled a knife to attack the cops.  They shot him, and he died.

If that's the way it happened, it's unfortunate that he died but it's not the cop's fault that he chose to get drunk in a public place and chose to assault the cops. It could have ended differently for him had he made different choices.

Why are did people riot against the police? And why did they choose to do it in the subway where they interfere with the travel of people who had nothing to do with it?  That certainly wouldn't win my support if my travel plans were interrupted because some people are angry.

If the public judges that the police are being too aggressive perhaps it would be better to stage a demonstration in front of the police station or town hall, or talk to their city council.