this is just great, another idiot loses it completely on the BART system... stabbing people like they're sponges just waiting for someone to poke them with a knife 
16th and Mission station is usually pretty packed during rush hour, can you imagine if he was in a crowd? poor timing, that's all it took... life-threatening injuries are bad enough, but what's the point of even calling it a community when people can't even feel safe on public transportation? 
