Yellow crime scene tape covered the street in New York's West Village where 25-year-old Mike Jones was stabbed and had his ear cut off in the early hours of Sunday morning.
One local told WNBC News that they had "never seen anything like it", while another described the murder as "horrifying".
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Four migrants who tried to cross the Channel in an inflatable dinghy have reportedly been rescued by French coastguards.
The victim, a man in his 40s, is being treated in hospital for "life-changing" injuries after the attack by two men who remain on the run.
Heavy security presence as 64,000 fans gather at the Stade de France stadium for the Six Nations rugby match between France and Italy.