The body of woman discovered in the parking lot of a California Wal-Mart store last week had been there in her parked car for at least three months.

Employees of the Salinas Wal-Mart found the body of Lauren Jessie Moss, 22, inside her silver Volkswagen Jetta on Feb. 3, KSBW reported. She was last seen alive on Nov. 13, 2015, which was the same day she left rehab.

According to the report, Moss' car was hard to see in because it had dark-tinted windows and a sunshade over the dashboard.

A coroner hasn't ruled on cause of death, but the death is believed to be a suicide.

Moss' sister said she left behind a suicide note and a drug needle was found in the car.

Security camera footage for the Wal-Mart parking lot wasn't available for November.