I don't know if Frank James was the shooter in the subway, but if he was, he offers an interesting query challenge.
NYC's black community always had black people in it, who love to suggest a usage of violence is incorrect. The reason why is complicated, it isn't merely about right or wrong. But, one of the juxtaposes between white controlled media of nyc /the black church in the black community of NYC/black employed class in NYC is the idea of gun violence in the Black community as something of youth. The narrative is, the youth must get the violence out of them. But, Frank James is sixty something years old. Frank James was an elder teen in the 1970s. So Frank James is not a Black person who is without a decades long look at the Black community in NYC, in NYS, in the USA and with that a high potential for a very honest while negative appraisal of many things in this area.
Many will suggest mental imbalance, as in NYC that is suggested for anyone who is violent. From white media to many or most black homes in NYC, mental dysfunction or imbalance is always the reason behind any violence as if, being violent can not be from a mentally sane person, which of course is a lie.