Two adults and their two toddlers found dead in van in parking lot of CVS in Garden Grove

Authorities Friday are trying to identify and determine the cause of death of four people, including two toddlers, found dead in a van in a parking lot in Garden Grove.

Garden Grove PD officers who responded to the scene Thursday night saw no apparent signs of trauma on the bodies.

The windows on the white Honda van, which was backed into a parking space in the far northeast corner of a CVS store parking lot at 12031 Brookhurst St., were concealed with blankets and a sunscreen, according to a GGPD news release.

A homeless woman called police around 8:30 p.m. March 15 to report a foul odor coming from the van.

She told officers she had seen the van in the parking lot over the last month or so, GGPD Lt. Carl Whitney told OnScene.TV early Friday. Whitney said the four are a homeless family

Although a cause of death has yet to be determined by the O.C. Coroner, Whitney told OnScene.TV one possibility might be accidental carbon monoxide poisoning as the adult male and adult female tried to warm themselves and their son and daughter, both believed to be under 2 years old.

Carbon monoxide is odorless and tasteless and extremely deadly.

“We’ve had incidents like this (happen) before,” Whitney told OnScene.TV. “(Those) people don’t know what happened. The next thing they know they’re feeling dizzy and lightheaded and they pass out and succumb to the poisoning.”

GGPD detectives Friday will comb through surveillance video at the shopping center, which is located at the busy intersection of Brookhurst Street and Chapman Avenue.

They are hoping to talk to anyone who might have known the family or might have seen them in the area, Whitney told OnScene.TV.

Anyone with additional information is asked to contact the Garden Grove Police Department at 714-741-5704.