She who was found unresponsive in her bed on May 24.
The Suffolk County Medical Examiner determined that she died of asphyxia.
Friends and family said her phone and purse were stolen.
Malave worked at Stony Brook Medical Center, according to family members.
The investigation is continuing.
Anyone with information is asked to call the Homicide Squad at 631-852-6392 or Crime Stoppers at 1-800-220-TIPS.