Story highlights Death row inmates should "celebrate" their "true liberation," says convicted killer David Zink

Zink was executed late Tuesday for the horrific murder of a 19-year-old woman in 2001

The Missouri governor described the killing as "an unspeakable act of violence"

(CNN) Before his execution, convicted murderer David Zink had some unusual advice for other inmates facing the death sentence: appreciate the fate that awaits you.

"For those who remain on death row, understand that everyone is going to die," Zink said in his final statement ahead of his death by lethal injection in Missouri on Tuesday night.

Execution, he suggested, is preferable to spending the rest of your life in prison.

"Statistically speaking, we have a much easier death than most, so I encourage you to embrace it and celebrate our true liberation before society figures it out and condemns us to life without parole and we too will die a lingering death," his statement says.

Zink, 55, was executed for the abduction, sexual assault and murder of 19-year-old Amanda Morton in 2001, a killing described by authorities as "an unspeakable act of violence."

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