The Foreign Office confirmed 25-year-old Briton Mike Jones, who was working as a youth football coach in New York, was murdered in the city yesterday.
A spokesman said: "We can confirm the death of a British national in New York on October 7. We are in touch with the local authorities and are providing consular assistance to the family."
The family of Mr Jones, a coach for New York Red Bulls' juniors, are said by friends to be "in a state of shock".
"He came home around November time and played football with us. So he kept in touch with everybody. He was just one of the lads."
More top news
Slippy start tomorrow with frost & ice
The court will determine how much the UK government and travel firms knew about the risk of an attack on tourists holidaying in the area.
Car insurance for young people could rise by £1,000 a year after a change to compensation payouts for those with life-threatening injuries.