User blog comment:EDN1980/God/Demon/Angel/Monster Weaknesses/@comment-3481504-20130313184727/@comment-4920092-20130314133244

Actually, the only Angel-on-Angel violence in the Bible is Michael casting Satan down from Heaven. Nowhere does an Angel kill another Angel. In fact, no angel, fallen or otherwise, is ever killed in the Bible. Satan is cast down, bound, and eventually condemned to the Lake of Fire, but Revelation is clear that he is to be tormented forever, along with the rest of the Fallen, not killed.