Texas to execute Coy "Elvis Wayne" Wesbrook after spending 17 years on death row.
Georgia is slated to execute a former sailor on Wednesday for the murder and dismemberment of a fellow shipmate 24 years ago.
Only six states carried out executions in 2015.
A new report estimates that 300 people on death row served in the military.
Escamilla is scheduled to die at 6 p.m. local time by lethal injection, the 12th execution in Texas this year.
The request follows the state's chemicals mix-up in the Richard Glossip case.
Oklahoma Governor Mary Fallin issued death row inmate Richard Glossip a stay of execution on Wednesday afternoon.
His lawyers had hoped newly submitted evidence would bolster his case.
In the 18th century, the mentally impaired were spared the death penalty. Why not now?
A case challenges Oklahoma's lethal injection method as a breach of the Constitution's ban on cruel and unusual punishment.
The U.S. carried out the fifth most executions in 2014, a new report shows.
Texas attorneys have another opportunity to argue that it is unconstitutional to execute the mentally ill.
The botched Arizona execution is the third this year in the United States, fueling concerns about the drugs used to kill convicted criminals