Cause of Death Revealed for Amazon Delivery Driver, 31, Found Unresponsive in Van

Jaylene Vargas Gonzalez, 31, was found unresponsive by deputies around 7:22 p.m. on Aug. 10

NEED TO KNOW

• Jaylene Vargas Gonzalez was found unresponsive in her Amazon delivery van in Lake County, Fla., on Aug. 10
• The woman was transported to a nearby hospital, where she was pronounced dead
• Three months later, officials said the cause and manner of death has been revealed

Officials announced the cause of death of an Amazon driver found unresponsive inside a delivery van in Florida.

Jaylene Vargas Gonzalez, 31, was found unresponsive by deputies around 7:22 p.m. on Aug. 10, according to the Lake County Sheriff’s Office. She was later taken to Leesburg Regional Hospital, where she was “pronounced deceased at approximately 2024 hours,” according to an investigative report obtained by PEOPLE.

Her cause of death was determined to be “carbon monoxide toxicity, sustained from accidental exposure within interior department of a delivery van,” according to findings shared with PEOPLE by the Districts 5 & 24 Medical Examiner’s Office.

The medical examiner’s findings also stated that testing of the van’s interior showed “elevated levels of carbon monoxide.”

Her manner of death was ruled accidental.

Authorities responded to the scene in Fruitland Park after someone complained that an Amazon truck was parked in the area for approximately four hours, according to an investigative report obtained by PEOPLE.

The responding officer noted in their report that when they entered the vehicle, there was a “strong, unknown odor.”

When the Fire Rescue Special Operations Hazardous Team arrived, that team began testing the van for hazardous material. The vehicle was then sealed and taken to secure storage.  

Upon examining the van, officials discovered a dent in the vehicle’s exhaust pipe.

“The Lake County Sheriff’s Office then conducted an interval check of the vehicle’s carbon monoxide levels after starting it and recorded the levels every ten minutes which showed…that the level raised,” officials wrote in an investigative document. “No odor was smelt on the exterior of the vehicle during the check.

“Once Lake County Crime Scene Investigations completed their documentation the vehicle was released to the owner’s tow company and advised of the unsafe nature of the vehicle,” they added.

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Authorities also obtained video footage recorded inside the van around the time Gonzalez passed out.

“In the recording the decedent can be observed going through packages in the rear compartment of the van before leaning forward and having what appears to be involuntary muscular movement. She then goes still before falling on the floor of the van,” officials wrote.

Authorities also said that Gonzalez had earlier sent a text to someone around 4:20 p.m., saying that “the truck was giving off a smell of ammonia causing her to become dizzy and that she had a sever[e] headache.” 

At the time of Gonzalez’s death, Amazon said in a statement that the company was “deeply saddened by this tragic incident” and that they were “cooperating fully with local authorities in their investigation,” according to NBC affiliate WFLA.

The company did not immediately respond to PEOPLE’s request for comment on Monday, Nov. 9.