Professor Insidd is a Former Member of The Sinestro Corps from Space Sector 3428. Professor Insidd was tasked with torturing Sinestro in an attempt to remove his Green Lantern Power Ring. During this process, he was the first to bring Sinestro to scream in pain. He promises Sinestro that he will free him of this emerald prison even if it means removing his hand. After Sinestro's will proves to be too strong, Insidd turns his attention towards the Green Lantern Power Battery itself. If Insidd is successful in depowering the Green Lantern Power Battery he will be able to defeat Sinestro and whoever does that will lead the Sinestro Corp. While imprisoned, Sinestro is able to remotely activate the Green Lantern Power Battery and fires a beam straight through Insidd, blowing him to pieces killi