$MJ All the data needed for an informed decision on cannabis legalization has already been collected and can be found at the Center for Disease Control.
Figures directly from the CDC on numbers of deaths per year in the USA:
* Prescription Drugs: 237,485 + 5,000 traffic fatalities
* Tobacco: 600,000
* Alcohol: 88,013 + 16,000 traffic fatalities
* Cocaine: 4,906
* Heroin: 7,200
* Aspirin: 466
* Acetaminophen (Tylenol): 179
* Marijuana: 0, none, not a single fatal toxic overdose in all medical history and no significant statistical record of traffic problems.