All of the Taliban 5 that Barack Obama freely gave away were killers, killers of thousands. Barack Obama restored the power and the inspiration of al Qaeda and the Taliban, there is no dispute.
Gitmo has been classified as the best run detention center in the world such that there is a soccer field, air-conditioning, selected menus of food items, video games, recliners and more, so these detainees have actually been rewarded for killing.