Complex sentence: The three-story headquarters of the department remained standing, but was completely gutted, with only a red-colored steel skeleton remaining; in the aftermath of the disaster, Endo was missing and was later confirmed to have died.
Split into simpler sentences: The three-story headquarters of the department remained standing but was completely gutted, with only a red-colored steel skeleton remaining. In the aftermath of the disaster, Endo was missing and was later confirmed to have died.