Immediately killing a beloved hero of almost seven decades instantly established that nothing is sacred in HBO's Lanterns. Anyone can die, and the DC comics this show is based on are a mere guideline at best. Yet even so, John Stewart's decidedly dark origin story – explored in episode three – comes as a big surprise to anyone familiar with his start in the source material.
Powerhouse comic book duo Denny O’Neil and artist Neal Adams introduced John as the fourth Green Lantern in Green Lantern #87 (1971) where he quickly proved himself to be worthy of wielding such emerald might. The character was originally an architect and civil rights activist who actively distrusted authority. This might seem worlds away from Aaron Pierre's somewhat uptight take on John in Lanterns, but that military background explored here didn't just come out of nowhere.