Ex-Marine identified as perpetrator in fatal subway chokehold incident.

Daniel James Penny, a former US Marine, has been identified as the man who choked Jordan Neely to death on a New York City subway car on May 1. Neely's death was ruled a homicide due to compression against his neck. Penny's attorneys claim that he acted in self-defense after Neely began aggressively threatening him and other passengers. Penny has not been charged with a crime. The incident has sparked discussions about the mental health crisis on the city's streets and subways.