Police say there were about 100 people at the home near Roman Avenue and Costar Street in New Cassel when the fight began around 1 a.m.
[Ads /]
Authorities say the people had spilled out onto the street, and the fight broke out at the corner. Several shots were fired from a handgun, and then the teenager was stabbed.
He was rushed to an area hospital, where he died as a result of his injuries. He has been identified as Jordan Harris, of Uniondale.
A second person was also stabbed, and that victim was hospitalized in stable condition.
[Ads /]
At this point, it does not appear anyone was hit by the gunfire.
Detectives request anyone with information regarding this crime to contact Nassau County Crime Stoppers at 1-800-244-TIPS.
----------
* More Long Island news
* Send us a news tip
* Download the abc7NY app for breaking news alerts