Police have yet to announce any arrests in connection with the shootings.
A handgun was also recovered at the scene.
The suspect, who is reportedly connected to a stabbing in Plymouth, has been taken into custody.
One 16-year-old was kiIIed, 3 others who attended the party were hospitalized.
Currently, there are no reports of shots fired or injuries.
Two other individuals, Sirick Amado, 24, and Antonio Dejesus, 26, were apprehended at the scene on Sunday.
Police ask public to please stay out of the area.
Surviving occupants of the SUV have been uncooperative, compelling investigators to locate the crime scene independently.
The shooting suspect has not been arrested yet
Police are still looking for the second suspect, 27-year-old Dejan Belnavis of Worcester.