Although this kind of incident has occurred a few times over the years, this is the worst I have heard of...
Oh, it can be worse. How about this captain, who was under the influence of cocaine and did not notice his poorly flying first officer fly the aircraft into the ground?
https://en.wikipedia.org/wiki/Trans-...es_Flight_2286
This flight had a first officer who failed multiple IFR checkrides, had a history of alcohol abuse, and the captain had used cocaine the night before the flight. If that's not a recipe for disaster, I don't know what is.