The severity of the Costa Concordia shipwreck was chiefly due to the “unconventional behavior” of its captain and weak emergency management, an Italian safety agency has concluded. The findings of the Italian Marine Casualties Investigative Body are part of a definitive 176-page report on the 2012 accident. While it did not absolve Costa Cruises’ shoreside oversight, the report said Capt. Francesco Schettino lied about the extent of damages to authorities. It further said that his delays in declaring an emergency and in deciding to abandon ship had fatal consequences.