Ketamine was first developed in 1962. It is on the World Health Organization's List of Essential Medicines, the most important medication needed in a basic health system. It is legally sold under a very wide variety of brand names, including Ketalar.
If the crime you commit (generally just first degree murder) is in a state that does not have the death penalty then the only way you can be executed is if you are tried in a federal court as opposed to a state court.
While proponents of the death penalty may cite capital punishment as a deterrent to murder, that has not been the case in Canada. Sentences currently in use in Canada for murder are: 1  First degree murder-life sentence with no possibility of parole for 25 years.