Around six weeks after Emergence Day, Mograbi was part of the effort to defend the city of Halvo Bay from a huge Locust assault. Mograbi helped defend a courthouse with other members of the Onyx Guard while Col.Ezra Loomis put Kilo Squad on trail. During Pvt.Augustus Cole's testimony, Mograbi was killed by Locust forces assaulting the courthouse. Mograbi's COG Tag was later recovered by Lt.Damon Baird of Kilo Squad.