A buried car filled with bags of concrete found in the backyard of a mansion in Atherton California. Cadaver dogs found traces of human remains. The owner of that car is being investigated. The car and owner were there in the 1990s. The home has since been sold.
https://www.nbcbayarea.com/news/local/peninsula/car-buried-in-atherton-backyard/3036540/
If not a murder on site perhaps the car was involved in a crime. In that neighborhood I'm pretty sure the owners could've called a tow truck if they didn't want the car.
https://www.nbcbayarea.com/news/local/peninsula/car-buried-in-atherton-backyard/3036540/
If not a murder on site perhaps the car was involved in a crime. In that neighborhood I'm pretty sure the owners could've called a tow truck if they didn't want the car.