This will turn out even more tragic if the pilot was not qualified to fly under IFR (Instrument Flight Rules) and flew into the fog bank anyway.

I'm no pilot but I have driven through Calabassas before and if memory serves, there's not much leeway on either side of Hwy 101 before you would hit the mountain sides. Woulda, coulda, shoulda would have been to turn that chopper around before even hitting the fog. I hope I'm wrong but jeez. Don't take risks like that.