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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Although Israel was widely believed to have been behind the airstrike on September 6, it has never before commented publicly on it.
Top temperatures of 12 Celsius (54 F).
Sarah Sanders, the White House spokeswoman, acknowledged that the attack wasn’t even mentioned in the phone call.