Since the reinstatement of the death penalty in the United States in 1976, Wyoming carried out only one execution: that of Mark Hopkinson in 1992 for ordering the murder of four people.
The execution of Mark Hopkinson in 1992 took place in a converted holding cell at the since-closed North Facility of the Penitentiary.
When the prosecution seeks the death penalty, the sentence is decided by the jury and must be unanimous.
In case of a hung jury during the penalty phase of the trial, a life sentence is issued, even if only a single juror opposed death (there is no retrial).
Gas inhalation is provided as backup method if lethal injection should ever be found unconstitutional.