sentences:  Following the Sinestro Corps War, the Green Lantern Corps tracked down the abandoned Sinestro rings and prevented them from finding new bearers.Among these is Amon Sur's ring, which attempts to recruit the self-proclaimed "Master of Fear", Jonathan Crane.The surviving members of the Sinestro Corps continue to try to bring fear to the Green Lanterns, in part by murdering the family members of Green Lanterns.