Why invest in Diamonds? Simple, to lose all the money you have. Russians have found a trillions of carats in diamonds. I dont even know why diamonds are so expensive when it is not even a rare stone. Diamond market is an artificial market there is no way in hell its a good investment.

If you think movies have to do anything with mass shootings then you  are misled. Japanese people play more "violent" games and their homicide levels are much lower than here in the US.