Oklahoma will resume executing prisoners this week after America's Supreme Court rejected claims the lethal injection process was inhumane.
Death row inmate Richard Glossip is due to die on Wednesday (local time) and he will become the 113th prisoner to die in the past four decades.
An execution-gone-wrong last year where a prisoner took 45 minutes to die attracted international anger.
Oklahoma executes more people per head of population than any other US state and Randall Workman has witnessed more executions than most.
He says the death penalty isn't inhumane, and he would vote to keep it.
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