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
1,209 people were found guilty of 'trolling' offences in 2014 - and 155 have been jailed.
Critics are ambivalent to this year's slate of winners, who were picked in part by American directors Joel and Ethan Coen.
1.5m European citizens will miss out on the chance to vote on whether Britain stays in or quits the EU.