A neighbor took pictures of the scene and you can see the debris scattered all over the backyard of a mountain home.
Investigators have been at the scene all day, trying to piece together what happened, but they don't have much to go on because most of the plane was destroyed by the crash and a fire.
We also have a look at the scene from overnight when investigators had just arrived.
Neighbors say they knew what was wrong right away.
Investigators haven't identified the victims, but they say the plane took off from a bay area airport last night.
Neighbors say there was almost no visibility at the time of the crash because of fog.