Eric Gonzalez, who helped Daniel Penny pin Mr. Neely to the floor of a subway car, also said he had lied when he told investigators Mr. Neely had hit him.
The men were receiving orders from a third man, who was working as an Iranian operative and was also involved in a plot to assassinate Donald J. Trump, federal prosecutors said.
Linda Sun, a former deputy chief of staff to Gov. Kathy Hochul, used her growing influence to push the interests of the Chinese government, U.S. prosecutors say.