Most of the crazy shyt that happens is because of people with mental health issues. Some of these people really should not be allowed in public with the issues they have. Broken justice and mental health system.
Keep people like these in hospitals and treat them until they can get better and if they cant, leave them there.
i don't recall seeing a news report that cites a number of previous subway attacks/incidents then cite the percentage of them that was done by mentally ill individuals.