Police say the remains have been identified as Seikeya Jones, 31, who is undomiciled.
The cause of death is still being determined by the Suffolk County Medical Examiner’s Office.
Officers responded to a 911 call reporting suspicious activity in the wooded area next to 320 Nassau Road at 11:50 a.m., according to police.
Upon arriving, police found a person deceased in a suitcase next to the building.
Anyone with information is asked to contact Homicide Squad detectives at 631-852-6392.