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.
The case for capital punishment is sometimes based on arguments that the death penalty is the only appropriate response to es-pecially heinous crimes; the case against it is sometimes based on claims that the sanctity of human life precludes state-sanctioned killings.