A Texas Historical Commission marker stands outside the Huntsville "Walls" Unit of the Texas Department of Criminal Justice, where the death chamber is located, Wednesday, June 26, 2013, in ... more 
A Texas Historical Commission marker stands outside the Huntsville "Walls" Unit of the Texas Department of Criminal Justice, where the death chamber is located, Wednesday, June 26, 2013, in Huntsville, Texas. Kimberly McCarthy, who would the 500th person executed in Texas, is set to be executed Wednesday night, barring a reprieve. More than three decades after the Supreme Court cleared the way for the death penalty to resume in the United States, Texas prepares to execute its 500th inmate. (AP Photo/David J. Phillip) less 
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Associated Press | Photo By David J. Phillip
Wed, Jun 26, 2013 7:42 PM EDT