On this date, April 6, 1992, Donald Harding was executed by the gas chamber in Arizona. He was convicted for the January 25, 1980 murders of Robert Wise and Martin Concannon. He was executed in 1992 by the state of Arizona by gas chamber. He became the first person to be executed in Arizona since 1976 when the death penalty was reinstated.
The former gas chamber in New Mexico State Penitentiary, used only once in 1960 and later replaced by lethal injection.
Please go to this blog post to read this article from the former Attorney General of Arizona, Grant Woods.