The jury urged mercy in sentencing, and the judge sentenced Wise to a life sentence in prison, under the terms of which she could only be freed by executive clemency.
In a letter, JAG officials said that the army was unable to consider any request for clemency in cases involving sentences of 30 years or more until the individual had served at least 10 years.
Though there was no doubt about the heinousness of his crimes, his lawyers argued that Cook suffered such appalling abuse as a child that he should have been shown clemency in commuting his sentence to life in prison.
President Barack Obama put a focus on granting clemency to those sentenced to extended drug sentences, offering more commutations of sentences than any president in a century.
What hasn't changed is the system of military justice, which still invests all the real power over investigations, trials, sentencing, and clemency in the chain of command.
Governments receiving official representations such as Saudi Arabia, where Mr Day appealed for clemency in the case of Mohamed Kohail, sentenced to beheading for killing a teenager in a 2007 schoolyard brawl will now know that Canada considers their justice system unfair.
"Our clemency work is continuing as part of our broader efforts to effectuate criminal justice reform and ensure fairness and proportionality in sentencing," Yates said.
Clemency, in the form of a commutation of sentence, is extremely difficult to obtain.
President Clinton granted Kemba executive clemency in 2000, six years into her 24-year sentence.
In January 2015 Australia's prime minister, Tony Abbott, together with Australia's minister for foreign affairs, Julie Bishop, made representations to Jokowi and Indonesia's foreign minister, Retno Marsudi, for clemency in the commutation of Sukumaran and Chan's sentences.
Contrary to popular belief, those who receive clemency in New York have almost always served at least half the minimum sentence.
