Checking the NTSB report for this accident showed that visual meteorological conditions prevailed at the time of this accident.
How do you know that the fact that this person was a cronic drug abuser didn't have something to do with his accident?
How do you know that a non-abuser would have saved the lives of the passengers?
Just a wild guess based on the fact that many airplanes crash in bad weather.
How do you know that marijuana use caused the crash for sure?