Nigeria\'s military on Wednesday said it had killed the second-in-command of Islamist group Boko Haram while repelling an insurgent attack earlier this month. \"During the Boko Haram terrorists\' attack... on 4 August, 2013 (troops) killed Momodu Bama (alias) Abu Saad,\" a statement said, identifying him as the \"second-in-command\" to insurgent chief Abubakar Shekau.