Murder is as old as Cain and Able. Pot doesn't change the equation.You will. The more widespread the use the more damage. One man shoots his wife, another eats the eyeballs out of another man's head, a group of potties laugh as they watch a man drown.Losses from alcohol dwarf any from marijuana.They will still not be able to cover the losses drug use incurs.It is important stuff. Colorado is seeing tens of millions in increased sales taxes, enabling them to keep other taxes lower while not diminishing services.Important stuff!
Alcohol is heavily taxed. It's been taxed for years and has never been able to pay for the losses drinking incurs. Never. Not even close. The taxes on alcohol doesn't even pay for the cost of driving related offenses.
You don't have the auto accidents, domestic abuse, property damage, deaths with marijuana use that you do with booze.
Just increase that. It's an approximation of what you will get.