in italy, tonight, here's abc's llama harassen. . >> reporter: that is the sound of a last-ditch rescue effort here in the mediterranean sea. five days after this luxury cruise ship crashed, divers are actually blowing up parts of "the costa concordia," in an attempt to reach further inside of it. today, they made a grim discovery, five more bodies. but no survivors. >> they just found five people. where people go before leaving -- supposed to go before leaving the ship on a lifeboat. >> reporter: so, they just missed getting on the lifeboat? >> we think so. >> reporter: italian investigators are now piecing together the details of what happened aboard the doomed ship. and they are laying the blame squarely at the feet of its captain, who authorities say was dangerously close to shore. he is under house arrest, after a hearing this morning. prosecutors are considering charging him with manslaughter, as the death toll in the disaster reaches 11 people. and today, shocking, new audiotapes appear to show he abandoned the sinking ship, while passengers were scrambling for safety. >> look, s