The Cook County Medical Examiner's Office said that that two individuals found in a burning PT Cruiser in a Palos Park Forest Preserve on Saturday night had been strangled.
The medical examiner attributed the cause of death as strangulation and homicide after both bodies underwent autopsies on Sunday afternoon.
The death investigation being led by the Cook County Sheriff's Office is now a homicide investigation.
Firefighters were called to the Cap Sauers Holding Nature Preserve near the intersection of Ford and Wolf Road around 11:45 p.m. Saturday, Chicago Breaking News reported.
Crews found a fully engulfed PT Cruiser, according to Cook County Sheriff’s officials. After firefighters extinguished the fire, they found two unidentified bodies inside.
Investigators were searching the area with dogs and helicopter on Sunday.An official at the Cook County Medical Examiner's office said that the age, race and gender of the bodies is still unknown. Both bodies had reportedly been burned beyond recognition.
It is not known if a rope or binding were found around the necks of the two individuals found inside the car.