A young man was stabbed to death by a violent crew inside a Queens waterfront park late Thursday, cops and sources said.
The still-unidentified victim – believed to be between 18 and 25 – was knifed in the back during a clash with more than 10 people inside Little Bay Park in Whitestone around 8:30 p.m., according to police and law enforcement sources.
He was taken to NewYork-Presbyterian Queens Hospital, where he was initially listed in critical condition, and soon succumbed to his injuries, police said…