Origin
Little is known of Zivvireel’s origin, other then he a Green Lantern during the Blackest Night.
Major Story Arcs
Blackest Night
For more information see: Blackest Night
During the Black Lantern attack on Earth, all Corps united in common interest to destroy Nekron and the Black Lantern Corps. During the battle, the Sinestro Corps villain Karu-Sil was attacked by the re-animated corpses of her pack of wild “dogs”. Karu-Sil was unequipped to deal with this threat and faced certain death, until the Green Lantern Zivvireel raced in to her aid.
Zivvireel implored Karu-Sil to put aside her hatred for his Corps and work with him to destroy the Black Lanterns. Together, their combined lights eradicated the un-living monsters. Although the immediate threat was vanquished, Zivvireel made the fatal mistake of trusting in a Sinestro Corpsman’s sense of honor. As Zivvireel turned away from Karu-Sil, the Sinestro Corps soldier cowardly attacked him from behind, blasting the Green Lantern in the head with a lethal beam from her ring.
Presumably, Zivvireel’s remains were interned alongside his fellow Corpsmen in the Crypts of Oa.