http://timesofindia.indiatimes.com/...sa-crew-members-death/articleshow/8137852.cms Alexander Kourik who was found dead under mysterious circumstances on Sunday in the bathroom of hotel Oberoi had hung `do not disturb' board outside his room. The housekeeping personnel did not knock at his door after they came across the board. Lufthansa Airlines officials grew suspicious when Kourik did not respond to their calls to return for the flight. The airline informed the hotel management which attempted to open the door without any success. A technician was called to break open the door.