The cause of death of a 35-year-old Aurora woman found unresponsive in her boyfriend's pickup truck remains unknown after an autopsy the Kane County coroner's office conducted Friday, authorities said.
Toxicology samples from the body of Abigail Sanchez have been sent to a forensic lab for testing, the coroner's office said.
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Sanchez was found dead Wednesday afternoon when police received a report of a suspicious vehicle parked and running for several hours in the 600 block of Front Street.
She had known health problems and authorities found no outward signs of trauma when they removed her body from the truck.
The investigation is ongoing.