article_snippet.sent: An argument in the early hours outside a Chelsea nightclub had escalated into violence at around 4am.
article_snippet.sent: Copeland and Saltara were reportedly arguing on the street as the attacker eavesdropped and then started to interfere.
article_snippet.sent: They were engaged in a verbal dispute in front of the location,' said Mason. '
article_snippet.sent: The males engaged in a confrontation, and that's when the 22-year-old male stabbed the 31-year-old male,' Mason said.
article_snippet.sent: the 22-year-old male then turned on Saltara, stabbing Mason in the breast, buttocks and arm, sources told the New York Post.
article_snippet.sent: Another woman, Catherine Somani, 23, was also stabbed in the abdomen as Catherine Somani apparently tried to break up the fight, WABC reported.
article_snippet.sent: The fight broke out down the street from 1OAK, a popular Chelsea club where celebrities including Leonardo DiCaprio, Justin Bieber, Miley Cyrus and Lindsay Lohan have been spotted partying.