Board Thread:Clean up Concerns/@comment-366087-20170215064802/@comment-29644557-20170222210235

With some fallen heroes, we don't directly see their heroism before their turn to evil (though this is rare). The best example is Light Yagami. Before the events of the series, Light helped the police catch murderers and criminals by aiding in their investigations. However, this is only talked about and not shown (unless you count some evidence in the prequel). He was a hero at one point, we just didn't get to see it. Sinestro was once a Green Lantern, so he counts as well in that scenario.