The Marine veteran who choked a volatile, mentally ill man on a New York subway says he put himself in a “very vulnerable position."

The trial over the death of Jordan Neely, which made Penny a right-wing cause célèbre, became a flash point in the debate over crime and vigilantism in big cities.

A former US Marine was found not guilty on Monday in the chokehold death of a homeless man on the New York subway in a divisive case highlighting race, mental illness and public safety in America's biggest city.