With her last effort, Zira threw the dead baby overboard, and then stumbled to Cornelius"" side to die lying on top of him on the deck.He located he artifact in the archive vault and removed it.However, when he ship violently tilted, the box holding the artifact was dislodged from Krall""s hand.He told Alfred about his findings.The ship was due to dock at Gotham City, not with a "dirty bomb," but with a weapon - the Kryptonite rock found in the Indian Ocean three months earlier ("A mineral capable of weakening Kryptonian cells - the first sample big enough o mean something").[Note: Post-mortem lividity, or hypostasis, occurs when blood in the body settles due to gravity, usually approximately within 30 minutes to 2 hours after death.