Francesco Schettino: Cruise ship captain in troubled waters Schettino trained at a well-regarded nautical institute in Naples province, local media report He was appointed captain by the Costa cruise line in 2006 Schettino, now under house arrest at his family home, comes from a seafaring background He argues the rocks he hit were uncharted; Costa says he took an unauthorized course Rome, Italy (CNN) -- Thrust from obscurity to notoriety overnight, Capt. Francesco Schettino is the man at the center of the questions and recriminations over the Costa Concordia cruise ship disaster. As transcripts emerge of his conversations with the Italian coast guard on the fateful Friday night the ship ran aground, the 52-year-old's every word is being pored over for clues as to what happened. And a picture is beginning to emerge of a man who spent decades at sea but who his employers say did not live up to his training or responsibilities at the helm of his ship. With at least 11 deaths confirmed and about two dozen people still missing, Schettino may face charges including manslaughter, shipwreck and abandoning a ship when passengers were still on board, chief prosecutor Francesco Verusio has said. And it has been widely suggested he may have been "showboating" when he sailed the luxury cruise liner so close to the island of Giglio, where submerged rocks tore through the hull. Schettino, who has said he will cooperate with investigators, insists the rocks were uncharted -- and his lawyer says he did everything he could to preserve the lives of crew and passengers. A native of Castellamare di Stabbia, near the southern city of Naples, Schettino comes from a seafaring family, Italy's Corriere della Sera newspaper reports. He graduated from the well-regarded Nino Bixio nautical institute in Piano di Sorrento, in Naples province, 30 years ago, according to the news agency Adnkronos. He joined Costa in 2002 as a safety officer, served as a staff captain and was appointed captain in 2006, according to the cruise line. Costa chairman Pier Luigi Foschi said Schettino had never been involved in an accident before. He also played down the possibility that alcohol may have played a role in the disaster, saying he did not believe Schettino drank, and that all crew were subject to random drug and alcohol tests by Costa Cruises. But Foschi placed the blame for the wreck squarely on the captain, saying it was his choice to deviate from frequently traveled routes. And Corriere della Sera reported that Schettino came close to Giglio to salute Mario Palombo, a legend among Costa Cruises' commanders, and as a gesture to the only Giglio native on board, chief steward Antonello Tievoli. Schettino -- who according to the Virgilio newspaper was well thought of by fellow sailors in Naples -- is now under house arrest at his family home in the region, his lawyer said Wednesday. According to the Republicca newspaper, Schettino called his mother Rosa at 5 a.m. Saturday to tell her that "a tragedy" had occurred and that he "tried to save as many passengers as possible." The captain reportedly told her "not to worry because it was all over." A rather different picture has emerged from the transcripts of conversations between Schettino and the Italian Coast Guard published by the Corriere della Sera newspaper. In those, the captain gives conflicting accounts of what happened when the ship hit rocks just off Italy's western coast, leading to what passengers described as a chaotic and surreal scene as they rushed to evacuate. Schettino initially appears to play down the scale of the disaster, initially saying only that a "technical failure" has occurred. Schettino then tells an official he has abandoned the vessel, according to the transcripts, which prosecutors say match those used in their investigation. But as the official questions his decision, Schettino appears to reverse course and says he did not abandon ship but was "catapulted into the water" after the ship ran into a rock, began taking on water and started listing. As the night unfolds, the Coast Guard commander repeatedly questions why Schettino, as captain, is not on the ship when passengers are still aboard. But Schettino appears unwilling either to go back on board or to take charge of the desperate evacuation efforts. Prosecutors have ruled out technical error as a cause of the accident, saying Schettino was on the bridge at the time the ship ran aground and made a "grave error" that led to the disaster. The Italian Coast Guard and Costa Cruises are still investigating why Schettino took the ship so close to shore in an area known for its rocky sea floor. But Costa Cuises has said that "preliminary indications are that there may have been significant human error on the part of the ship's master, Capt. Francesco Schettino, which resulted in these grave consequences." In addition to questions over how Schettino handled himself after the wreck, questions also lingered about whether the captain should have ordered an evacuation sooner and why no "mayday" distress signal was sent. The captain's attorney said in a statement Monday that Schettino was "shattered, dismayed, saddened for the loss of lives and strongly disturbed." The eyes of the world will likely remain on Schettino as investigators come to their own conclusions as to the role he played in a catastrophe many have likened to the sinking of the Titanic a century ago. CNN's Hada Messia, Livia Borghese and journalist Barbie Nadeau contributed to this report.